To begin or start something, especially a formal process or activity.开始或启动某事，尤指正式过程或活动。
Example:Construction is scheduled to commence in the summer.
The act of presenting information or an issue in a particular way to shape perception and interpretation.以特定方式呈现信息或问题以塑造感知和解释的行为。
Example:The government is framing the expansion as a step toward becoming a leading energy producer.
Converted into a liquid state, typically by cooling or compression, as in liquefied natural gas.转化为液态，通常通过冷却或压缩，如液化天然气。
Example:The pipeline will transport liquefied natural gas.
In pipeline engineering, the practice of constructing additional parallel pipeline sections to increase capacity.在管道工程中，建造额外的平行管道段以增加容量的做法。
Example:The project involves 11 looping segments of pipeline.
Achieving a balance between the amount of greenhouse gases emitted and the amount removed from the atmosphere.实现温室气体排放量与从大气中移除量之间的平衡。
Example:The facility would be the world's first net-zero LNG operation.
Main clause: 'The federal government has authorized the Sunrise Expansion Program'. Appositive noun phrase: 'a $4 billion project by Enbridge Inc.' modifies the program. Infinitive phrase of purpose: 'to extend British Columbia's natural gas pipeline network'. This structure adds descriptive and purposive information without a separate clause.主要子句：「聯邦政府已授權Sunrise Expansion Program」。同位語名詞短語：「a $4 billion project by Enbridge Inc.」修飾該計劃。不定式目的短語：「to extend British Columbia's natural gas pipeline network」。此結構在不使用獨立子句的情況下添加描述性和目的性信息。
Main clause: 'The project involves the construction of approximately 139 kilometers of new pipeline'. Prepositional phrase: 'through 11 looping segments'. Reduced relative clause (present participle phrase): 'running parallel to the existing Westcoast system' modifies 'segments'. This participle clause replaces a full relative clause ('which run parallel...'), increasing lexical density.主要子句：「The project involves the construction of approximately 139 kilometers of new pipeline」。介詞短語：「through 11 looping segments」。縮減關係子句（現在分詞短語）：「running parallel to the existing Westcoast system」修飾「segments」。此分詞短語替代了完整關係子句（which run parallel...），增加了詞彙密度。
Main clause: 'The route will connect Chetwynd, British Columbia, to the U.S. border near Vancouver'. Present participle phrase (adverbial of result): 'adding up to 300 million cubic feet per day of liquefied natural gas (LNG) transportation capacity'. This participial phrase indicates the result or additional attribute of the connection, functioning as a non-finite clause.主要子句：「The route will connect Chetwynd, British Columbia, to the U.S. border near Vancouver」。現在分詞短語（結果狀語）：「adding up to 300 million cubic feet per day of liquefied natural gas (LNG) transportation capacity」。此分詞短語表示連接的結果或附加屬性，作為非限定子句。
Main clause: 'Minister Hodgson stated'. Two parallel noun clauses (content clauses) as objects: 'that the facility would be the world's first net-zero LNG operation' and 'that the increased capacity would support residential, commercial, and industrial energy needs'. The second noun clause contains a present participle phrase: 'including the supply of gas to LNG export terminals such as Woodfibre LNG'. The use of 'would' indicates future-in-the-past or conditional nuance. This sentence demonstrates complex coordination of subordinate clauses and a non-finite modifier.主要子句：「Minister Hodgson stated」。兩個並列名詞子句（內容子句）作為賓語：「that the facility would be the world's first net-zero LNG operation」和「that the increased capacity would support residential, commercial, and industrial energy needs」。第二個名詞子句包含現在分詞短語：「including the supply of gas to LNG export terminals such as Woodfibre LNG」。「would」的使用表示過去將來或條件語氣。此句展示了從屬子句的複雜並列和非限定修飾語。
Main clause: 'The Sunrise Expansion Program represents a significant investment in Canada's natural gas infrastructure'. 'With' + noun + present participle phrase: 'with the government framing it as a step toward becoming a leading energy producer while pursuing net-zero emissions targets'. This absolute-like construction provides accompanying circumstance. The phrase 'while pursuing' is a reduced adverbial clause (present participle) indicating simultaneous action. The sentence uses a complex prepositional structure to embed additional information without a finite clause.主要子句：「The Sunrise Expansion Program represents a significant investment in Canada's natural gas infrastructure」。「With」+ 名詞 + 現在分詞短語：「with the government framing it as a step toward becoming a leading energy producer while pursuing net-zero emissions targets」。此類似獨立主格的結構提供伴隨情況。短語「while pursuing」是縮減的狀語子句（現在分詞），表示同時進行的動作。該句使用複雜的介詞結構嵌入附加信息，而無需使用限定子句。