keep up one's end英语释义是to do what one has promised to do (in a bargain, agreement, etc.)，我们可以理解成，为了目标继续坚持下去。补充end习语：at the end of the day最终；...
7.And it could drastically affect which insects up end up where. 这会大大影响昆虫的生存环境,甚至是它们生死存亡。
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