一、在做一件事没有更好的选择又没有理由不做的时候，我们可以使用 might as well 和 may as well 来表达最容易或是最符合逻辑的行动。它们都是非正式的表建议的说法，might as well 更为普遍。例如：
You might as well tell them the truth.
We may as well begin now.
You might as well get a taxi from the station. It’ll be quicker than me coming in to get you.
A: Should we start now?
B:Might as well. （非正式）
A: What time does the film finish?
B: I think it’s ten o’clock.
A: Uh-huh. We may as well eat in town before it, then.
The party was so dull that I might just as well have stayed home.
二、当要加强语气时，可以在 might 和 may 后加 just，例如：
Well, I think if it’s a choice between a job and a place at college, you may just as well take the job. At least you’ll earn some money.
We don’t know anyone here and they’re discussing stuff that doesn’t concern us. We might just as well leave.
三、在表达额外的可能性时，might as well 和 might also，may as well 和 may also 是不一样的意思，例如：
正：Before you go hiking, buy yourself a good pair of boots. You may also need to buy thick walking socks.
误：Before you go hiking, buy yourself a good pair of boots. You may as well need to buy thick walking socks.