__what duo you call this in English?___It's a stamp .It's used ___英语解答

__what duo you call this in English?___It's a stamp .It's used _____sending letters.
( 为什么这里要用FOR .不用TO.)
sth be used to doing 也指被用来做=be used for

人气：225 ℃　时间：2019-08-24 06:42:58

解答

for 表原因
而be used to doing 表过去经常做的事
显然用for比较清楚,也让人明白