join
vt. 参加；结合；连接；
vi. 加入；参加；结合；
n. 结合；连接；接合点.
例句：
He joined the Army five years ago.他５年前参了军。
Strangely, they hadn't invited her to join them.
令人奇怪的是，他们没邀请她参加。
The molecules join together to form long strings.
分子连接在一起形成长串。
She gave up her job to join her husband's campaign.
她辞了工作以参加丈夫的竞选活动。
He chose to join the company as a market researcher.
他选择加入这家公司当一名市场研究员。
You're most welcome to join us if you feel so disposed.
你若有意参加，我们非常欢迎。
Angela says she longs to join an amateur dramatics class.
安吉拉说她渴望参加业余戏剧班。
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