half
an+名词十and a half
用：(指人或物)很典型或很好的例子。意思得根据上卜文来定，可以是对所说的人或物很赞成，很满意，也可以是不很赞成或不很意。
意：那才是…;那可不能叫(算)
例，That's a job and a half.
那才叫个活儿:(指那才是个正经活儿)
That's a fish and a half you've got there. Where did you catch it?
你那条鱼才是条好鱼，你在哪儿钓到的?
half and half
意：一半一半，一半·一半…，半…半
例，A: Is she Japanese or Chinese?
她是日本人还是中国人?
B: Half and half.
她是混血儿。
not half
用：等于not at all，修饰bad, badly 。
意：相当好，真好;不错
例.That wine is not half had.
那种荀萄酒相当好喝。
