abroad adv. /aboard adv. /board n.&v. 辨析
前两个词是副词,词形相近,容易记混。这两个词的意思差异很大。abroad意为“在国外”;而aboard的意思是“登(机),上(车船等)”,与动词go搭配来表示登机等;最后一个词board常用来表示“登机,上船”,是动词。
例:I have decided to study abroad next year.
我已决定明年去国外读书。
It is time to go aboard.
现在该登机了。
We are asked to board half an hour before departure time.
起飞前半小时之内,我们必须登机。