a group of的用法和樣例：
例句
- He selected a team for the special task.
他為這項特殊任務(wù)挑選了一組人馬。 - A group of plainclothes police went into the house.
一組便衣警察進(jìn)入住宅。 - We came up with a group of tourists.
我們趕上了一群旅游者。 - The boys on that street are a rough crew.
那條街上的男孩是一群粗野的孩子。 - A group of us went out to a bar last night.
昨晚我們一伙人去酒吧了。 - A body of the enemy hung upon their rear.
一伙敵人緊緊地跟在他們的后面。
