by half的用法和樣例：
例句
- A stitch made by inserting the needle at the midpoint of a preceding stitch so that the stitches overlap by half lengths.
回針縫在先前縫的一針中間加縫的一針，以便使針腳的交錯重疊為原來長度的一半 - She reckoned she had cut her cost by half.
她估計她減少了一半的費用。 - If we wire into this job we shall be finished by half past ten.
如果我們抓緊干，10點半前就可以幹完。 - It's exasperating to run for a train and then miss it by half a minute.
跑著趕火車，卻差半分鐘沒趕上，真氣人。
辭彙搭配
- too sharp by half 可太聰明啦
- too clever by half 可太聰明啦
- too…by half 未免太…啦
