基本词义
than【/ðən/ DJ /ðən/ KK /ðæn/ DJ /ðæn/ KK】
preposition, conjunction
used to introduce the second part of a comparison（用以引出比较的第二部份）比
I'm older than her.我比她年龄大。
There was more whisky in it than soda.那里面的威士忌比苏打水多。
He loves me more than you do.他比你更爱我。
It was much better than I'd expected.这比我预料的要好得多。
You should know better than to behave like that.你应当明白事理，不该那么不懂规矩。
I'd rather e-mail than phone, if that's OK by you. 如果你觉得可以的话，我宁愿发电子邮件也不打电话。
used for comparing amounts, numbers, distances, etc.（比较数量、距离等）多于，小于，少于 more/less/fewer, etc. ~It never takes more than an hour. 所用的时间从不会超过一个小时。
It's less than a mile to the beach.离海滩不足一英里远。
There were fewer than twenty people there.那里有不到二十个人。
used in expressions showing that one thing happens straight after another（表示一事紧跟另一事发生）就No sooner had I sat down than there was a loud knock on the door. 我刚坐下就有人大声敲门。
Hardly had we arrived than the problems started.我们刚到，问题就来了。
英语字典
than
You use than after a comparative adjective or adverb in order to link two parts of a comparison.
You use than when you are stating a number, quantity, or value approximately by saying that it is above or below another number, quantity, or value.
You use than in order to link two parts of a contrast, for example in order to state a preference.
相关短语
than ever比以前
no more than adv.只是；仅仅
none other than不是别的而正是…
no other than只有；就是
