Put the bottle in a plastic bag in case of spillage.

　　把瓶子裝在塑料袋里，以免灑得到處都是。

　　How should I know where you've left your bag?

　　我怎么知道你把包丟在哪兒了？

　　Take this bag, and leave everything else to me.

　　把這個包拿走，其他所有東西都給我留下。

　　Could you watch my bags for me while I buy a paper?

　　我去買份報紙，你能替我照看一下我的包嗎？