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- Half a semitone. 四分之一音二分音符的一半
- I can't drink more than half a carafe. 我顶多能喝半瓶。
- Music To lower (a note) a semitone. 降半音：把（音符）降低半音
- I have half a mind to shut him up. 我有点想把他关起来。
- Half a mo (ie Wait a little), I'm not quite ready. 等一下，我还没完全准备好。
- To reduce(a perfect or minor interval) by a semitone. 把（音程）减半音把（纯音程或小音程）减小半度
- I'll be down in half a tick/in two ticks. 我马上就下来。
- Use half a lemon dipped in salt and vinegar. 用半个柠檬蘸上盐和醋。
- The baby had a gain of half a pound. 婴儿的体重增加了半磅。
- They finished the house within half a year. 他们在半年内盖好了这幢房屋。
- Half a loaf is better than no bread. 有比没有好。
- I weighed out half a kilo of flour and added it to the mixture. 我秤了半公斤面粉，加到混合物中。
- Given half a chance I'd give up my present job and join a circus. 假使有一点机会，我也要辞去现在的工作去参加马戏团。
- He must have put away half a bottle of whisky last night. 昨晚他大概喝了半瓶威士忌酒。
- The thieves will snatch your last bob if you give them half a chance. 一有机会，小偷便会抢走你的最后一个铜板。
- She's keen and I'm sure she'll succeed given half a chance. 她聪明机智，只要有点儿机会我肯定她会成功。
- The fleet lay at anchor half a mile off the headland. 舰队在离山岬半英里处抛锚停泊。
- Be careful of that fellow; he'll swindle you if he gets half a chance. 对那家伙要当心一点，他只要有丁点机会，就会骗你的钱财。
- Keep on past the church; the stadium is about half a mile further on. 一直向前走过了教堂，约莫半英里就是体育场。
- These big ships need half a day to rune round. 这些大船要用半天时间准备返航。
