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1. 半;二分之一
Half of an amount or object is one of two equal parts that together make up the whole number, amount, or object.

2. 部分地;在某种程度上;有点
You use half to say that something is only partly the case or happens to only a limited extent.

3. （足球、橄榄球、篮球比赛等的）半场，半时，半局
In games such as football, rugby, and basketball, matches are divided into two equal periods of time which are called halves.

4. （啤酒、苹果酒等的）半品脱
A half is half a pint of a drink such as beer or cider.

5. (儿童乘坐公共汽车或火车时的）半（价）票
A half is a half-price bus or train ticket for a child.

6. 一半…血统地
You use half to say that someone has parents of different nationalities. For example, if you are half German, one of your parents is German but the other is not.

7. （时间）…点半
You use half past to refer to a time that is thirty minutes after a particular hour.

8. 同 half past
Half means the same as half past .

9. （用于形容词前，表示强调或夸张）非常，极其
You can use half before an adjective describing an extreme quality, as a way of emphasizing and exaggerating something.

10. （有时用在否定句中，表示非常肯定的意思）
Half is sometimes used in negative statements, with a positive meaning, to emphasize a particular fact or quality. For example, if you say 'he isn't half lucky', you mean that he is very lucky.

11. 一点也不;差得远
You use not half or not half as to show that you do not think something is as good or impressive as it is meant to be.

12. 非常…的;更…的;非同寻常的
When you use an expression such as a problem and a half or a meal and a half, you are emphasizing that your reaction to it is either very favourable or very unfavourable.

13. 妻子;丈夫;另一半
If you talk about your better half or your other half you mean your wife, your husband, or the person of the opposite sex that you live with.

14. 以一半;一半地
If you increase something by half, half of the original amount is added to it. If you decrease it by half, half of the original amount is taken away from it.

15. 做事不认真;做事马虎
If you say that someone never does things by halves, you mean that they always do things very thoroughly.

16. （两人）平均分摊，平分（费用）
If two people go halves, they divide the cost of something equally between them.

17. half the battle - see battle
half an ear - see ear
too clever by half - see clever

1. one of two equal parts of a divisible whole

e.g. half a loaf
half an hour
a century and one half

Synonym: one-half

2. one of two divisions into which some games or performances are divided: the two divisions are separated by an interval