Eight hours on a bus is no joke, is it.

　　坐８個小時(shí)的公交車可不是鬧著玩兒的，對吧。

　　He is in no doubt as to what is needed.

　　他對需要些什么心中有數(shù)。

　　It is a country where corruption is rife.

　　這是個腐敗成風(fēng)的國家。