无妨: there's no harm; may as well; might as well 短语和例子这样做并无妨。 there is no harm in doing that. 你无妨再试一下。 you might well try again. 这样也无妨。 it's just as well
偶尔晚睡并无妨害: there's no harm in your staying up late occasionally
全然: completely; entirely 短语和例子全然不顾 give no thought to; 全然不计后果 in utter disregard of the consequences; 全然不同 entirely different; 全然不知 not to know beans; entire ignorance