The host bids him welcome.是什么意思？

The host bids him welcome.

主人欢迎他.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

host

n. [计算机]主机，主人，东道主，节目主持人，酒店业主；vt. 当主人，主办宴会，主持节目，款待，做东；vi. 做主人，做东道主；

例句
...an oily liquid, basic to the manufacture of a host of other chemical substances...
制造许多其他化学物质所必需的油性液体

bids

v. 出价，投标( bid的第三人称单数 )，恳求，命令，说（问候话）；

例句
The bids were submitted in May and were meant to have been kept under wraps until October...
标书5月份递交，本欲10月份才予以公布。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

welcome

vt. 欢迎，乐于接受；adj. 受欢迎的，令人愉悦的，表示感谢的；n. 欢迎，迎接；

例句
...last Christmas, when there'd been the welcome appearance of Cousin Fred.
去年圣诞，堂兄弗雷德的现身受到热烈欢迎。