enter可用作不及物动词，也可用作及物动词。用作及物动词时接名词或代词作宾语，也可接以“(as+) n. ”充当补足语的复合宾语。
enter可用作系动词，接形容词作表语。
例句：
Many people think that party politics should not enter into local government.
许多人都认为，地方政府内不应拉帮结派。
Several new firms have now entered the market.
有几家新公司已打入市场。
You may not enter the security area without authorization.
未经批准不得进入警戒地区。
The program will prompt you to enter data where required.
这个程序在必要时将提醒你输入数据。
How many students have been entered for the exam?
有多少学生报名参加考试？
Press the return key to enter the information.
按回车键录入信息。