学实用英语 Be my guest.请便 Consider it done.放心吧，没问题 Why is that spicy?为什么那么辣? He never eats leftovers他从来不吃剩菜 He often orders takeout他经常叫外卖 First come,first served.捷足先登 I have run out of credit on my phone.我手机没话费了 Let's just talk about the matter in hand.我们就事论事 He did it on a stupid whim.他一时冲动做了那件事 Why did you do it? A whim.你为什么那么做？一时冲动。