1 in the direction of; as far as 向；至；往: She's going to London. 她要去伦敦。Turn to the left. 向左转。Pisa is to the west of Florence. 比萨在佛罗伦萨的西面。He has gone to school. 他上学去了。

2 used to show the end or limit of a series of things or period of time （用于表示一系列事物或一段时间的尽头或限度）直到: from Monday toFriday 从星期一到星期五from beginning to end 从开始到结束

3 used to show the person or thing that receives sth 用于表示接受者: Give that to me. 把那个给我。I am very grateful to my parents. 我很感激我的父母。What have you done to your hair? 你把头发怎么搞的？Sorry, I didn't realize you were talking to me. 对不起，我不知道你是在跟我说话。

4 (nearly) touching sth; directed towards sth 接触到；针对: He put his hands to his ears. 他将两手捂住耳朵。They sat back to back. 他们背对背坐着。She made no reference to her personal problems. 她没有提及自己的个人问题。

5 reaching a particular state 达到某种状态: The meat was cooked to perfection. 这肉煮得恰到好处。His speech reduced her to tears (= made her cry). 他的话令她流涕。

6 used to introduce the second part of a comparison （用于引出比较中的另一部份）: I prefer theatre to opera. 我喜欢戏剧，甚于歌剧。

7 (used for expressing quantity) for each unit of money, measurement, etc （用于表示数量）每…等于: How many dollars are there to the euro? 多少美元等于一欧元？

8 (used to say what time it is) before （用于表示时间）在…之前: It's ten to three (= ten minutes before three o'clock). 三点差十分。

9 used to express sb's opinion or feeling about sth （用于表达对某物的看法或感受）: To me, it was the wrong decision. 我认为那是错误的决定。It sounded like a good idea to me. 我觉得这听起来像是个好主意。I don't think our friendship means anything to him. 我认为我们的友谊对他来说毫不重要。

10 used for expressing a reaction or attitude to sth （用于表达对某事的反应或态度）: To my surprise, I saw two strangers coming out of my house. 我看见两个陌生人从我家里走出来，吃了一惊。His paintings aren't really to my taste. 他的画真的不合我的口味。

11 used with verbs to form the INFINITIVE （与动词连用，构成不定式）: I want to go home now. 我现在想回家。Don't forget to write. 别忘记写信来。I didn't know what to do. 我当时不知道该怎么办。

12 /tu: ||; ɝɛḷɛTɛ/ (used about a door) in or into a closed position （指门）关上: Push the door to. 把门推一推关上。