1.contribute to 促成
例句:Various factors contributed to his downfall.
多種因素的作用導致了他的倒臺 。
2.pose a threat 構成威脅
例句:This could pose a threat to jobs in the coal industry
這可能會給煤炭產業的就業造成威脅 。
3.begin to 開始
例句:The horns of some deer begin to shed.
有些鹿開始換角了
4.active faults 活斷層
例句:Active faults and lineaments, and recent volcanic activity were re-examined.
對活斷層,線狀區和近期火山活動進行了重新研究 。