Examples
zhè这zuò座shān山guò qù过去cháng cháng常常fā chū发出yān wù烟雾。
这座山过去常常发出烟雾。
The mountain used to send out clouds of smoke.
这个屋子里满是烟雾。
The room was full of smoke.
虽然弘子不喜欢香烟的烟雾，她却乐意和朋友出去喝酒。
Although Hiroko dislikes cigarette smoke, she readily goes out drinking with friends.