It was imperative that he act as naturally as possible.最重要的是他要做到盡可能自然。He always speaks in an imperative tone of voice.他老是用命令的口吻講話.The imperative mood is a kind of grammatical phenomenon.祈使語氣是一種語法現象....
The most important political imperative is to limit the number of US casualties.現在的頭等政治大事就是要控制美國人的傷亡人數。Job creation has become an imperative for the government.創造就業機會是政府必須做的事。It was imperative that he act as naturally as...