register for(v.+prep.)
为…注册〔登记〕enter one's name, as on a list, and sometimes pay money, so as to become a certain kind of person
▲register for sth
An increasing number of students are registering for degree courses each year.每年,越来越多的学生注册学习能获得学位的课程。

register in(v.+prep.)
(把…)登记为成员enter one's name, as on a list, and sometimes pay money, so as to join an organization
▲register in sth
How many members have officially registered in the club?该俱乐部正式登记的会员有多少?

register on(v.+prep.)
在…上很容易地看到be easily seen on sth
▲register on sth
A surprise that he was unable to hide registered on his face.他脸上露出掩饰不住的惊讶表情。

用作不及物动词
▲S+～(+A)
He told me he was married but I'm afraid it didn't register.他告诉我他已经结婚了,不过我想当时我并未把这事记在心上。
用作及物动词
▲S+～+n./pron.
Have you registered the birth of your baby?你给婴儿的出生登记了吗?
His face registered both surprise and joy.他脸上显露出惊喜交集的表情。
◇ 用于be ～ed结构
Is the car registered?这部车注册了吗?
▲S+～+that-clause
I registered that she was late.我注意到她迟到了。
用作宾补动词
▲S+～+n./pron.+(as) n./adj.
◇ 用于be ～ed结构
In former times, only property owners could be registered as voters.从前,只有有财产的人才能登记作选民。

register, catalogue, enroll, list, record
参见record条。

register也可用作名词,意思是“登记(表),注册(簿)”“记录器”“暖气,调风器”。例如:
He was looking over a hotel register.他正在仔细检查旅馆住宿登记。
Each class has a register of 50 students.每班注册有50个学生。
A register indicated the number of people who had gone through.记录器上显示出经过的人数。
We turned the house registers off during the summer.夏天,我们关掉室内的暖气。

［同义词］   enlist, enroll, record, write down
［词源］＜拉丁语regerere(写下,抄写,记录)