on board是介词还是副词
on board 既可以用作介词,也可以用作副词。
1. 用作副词时,表示在船上。如:
Have the passengers gone on board? 旅客都已上船了吗?
As soon as Im on board, I always feel sick. 我一上船就想呕。
2. on board 用作介词时,其后可直接跟表示车、船、飞机的名词。如:
He went on board the train just now. 他刚上火车。
Mr Smith is on board one of those ships. 史密斯先生在其中的一条船上。
There were ten people on board the plane. 当时飞机上有十个人。
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