上船的短语用英文怎么说

"上船"的英文短语是 "board a ship"。这个短语的来源可以追溯到古英语中的 "bord"，意思是船的甲板。因此，"board a ship" 就是指登上船的甲板。

例句：

The passengers were asked to board the ship at 10 am.（乘客被要求在上午 10 点登船。）
I'm going to board the ship in the evening.（我晚上要上船。）
It's time to board the ship. We have to set sail soon.（是时候登船了。我们必须很快起航。）