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情景会话1 我不会做数学题
Zoey: I can't figure out this math problem. I think I’ll throw in the towel.（我算不出这道数学题，我觉得我要放弃了。）
Ian: Don't give up! You can do it if you try again.（别放弃！再试一次你一定能做到。）
情景会话2 好友Nick电脑出了问题
Nick: I’ve tried to fix this computer all day, but nothing works.（我整天都在试着修这台电脑，但什么都不管用。）
Zoey: Maybe it’s time to throw in the towel and call a professional.（也许该放弃了，叫个专业人士来吧。）
