挡驾的英文：
decline to meet a guest; turn away a visitor

参考例句：

I tried to shield him against prying journalists.
我竭力为他挡驾，挡住那些锲而不舍的记者。

decline是什么意思：
n. 下降；减少，衰退，衰落，最后部分；晚年，倾斜
v. 下降，下跌；减少；倾斜；婉拒；使降低，使变格

sink into a decline
开始衰落，衰弱下去，体力衰退

The population is on the decline.
人口在减少。

The decline of literature indicates the decline of a nation.
文学的衰落表明一个民族的衰落。

meet是什么意思：
n. 运动会，体育比赛，猎狐运动
v. 相遇，相逢，遇见，相识，结识，开会，经历，支付

They boycotted the meeting.
他们拒绝参加那个会议。

Nice to meet you. Nice to meet you, too.
很高兴认识你。 我也很高兴认识你。

Nice to meet you. Nice to meet you, too.
很高兴认识你。 我也很高兴认识你。

guest是什么意思：
n. 客人；旅客；特别来宾；寄生动植物
v. 款待；当特别来宾
adj. 客人的；特邀的

visiting professor; guest professor
客座教授

Speed the parting guest
祝客人一路顺风

A constant guest is never welcome
常客令人厌