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lifeline ['laɪflaɪn] n
desert. 生命线
econ. 命脉
oil 救生绳
sport., med. 救生索
subm. 潜水员升降索
lifeline: 22 phrases in 13 subjects
Agriculture1
Business1
China1
Commerce1
Earth sciences2
Economy1
Electronics1
Engineering geology1
General1
International trade1
Nautical2
Technology8
United Nations1