enter 
英 [ˈɛntə]  美 [ˈɛntər] 
n. 输入；回车

v. 进入；参加；登记；开始

例句：
He entered the room and stood near the door. 

他走进屋里，站在门边。

Suspected terrorists had been caught trying to enter the country using British passports. 

恐怖嫌犯在试图用英国护照进入该国时被捕。

As soon as I entered, they stopped. 

我一进去，他们就停了下来。

`please knock before entering' 

“进来之前请先敲门”

To enter, simply complete the coupon on page 150. 

要想参加，只需填写第150页上的参赛表格。