1.
The sugar in the bags
一碰到water就开始melt away.
2.
Empty bags are not heavy.
“哎，真好玩，the two bags一碰到water就变empty.
3.
As her lips touched the petals, they burst open, and oh!
她的嘴唇一碰到花瓣，花儿立刻绽放了！
4.
come up against a series of problems.
碰到一系列的问题。
5.
We've run up against a big problem.
我们碰到了一个大问题。
6.
When I come across a new word, I put it down in my notebook.
碰到一个生词，我就把它写到笔记本上。
7.
We have come up against an unexpected problem.
我们碰到了一个意想不到的问题。
8.
A nobleman and a merchant once met in a restaurant.
一次，一个贵族在饭店碰到一个商人。
9.
He hung and swung the wall-dead.
他摆动了一下，碰到墙上——一命呜呼了。
10.
One day she happened to run across Xiao liu.
有一天她碰巧见到小刘了。
11.
As soon as he touched her she seemed to wince and stiffen.
只消他碰到她，她便一阵畏缩，全身僵硬。
12.
I went out, merely to get caught in a shower.
我跑出去，结果徒然碰到一场骤雨。
13.
Few animals were observed on the route;
他认为碰到这些人总是一件倒霉的事。
14.
He took two arrows,and he must have hit his marker.
他中了两箭,一定是偶然碰到了传导器
15.
we often met over a cup of coffee.
我们时常碰到一起喝杯咖啡。
16.
It is the most interesting book that has fallen in my way
这是我碰到的最有趣的一本书。
17.
She found trouble with the first paragraph.
在第一段她就碰到了困难了。
18.
She clashed those cups down on the floor.
她把那些杯子??啷一声碰掉到地板上。