不知道他为什么到现在还没来,他肯定坐错车了（wonder)
I wonder why he hasn't come yet,he must have taken the wrong bus.
很幸运那孩子刚才吃的药还没在胃里溶解(dissolve)
Luckily,the pill the chils took hasn't dissolved in his stomach yet.
如果不太麻烦的话,请你一到那儿就马上给我来个电话（make a phone call)
Please make a phone call to me as soon as you get there if it's not too much trouble
问题是如何采取行动来执行对污染的严格限制.（restriction)
The problem is how to take actions to carry out restrictions on pollution.