Special tugs now usher tankers in and out of Valdez to the open sea.
现在，进出瓦尔迪兹港的油轮由特别的拖船引导。
2
For example, if someone answers a phone call in the meeting room then gently usher them out so that their conversation does not disrupt the retrospective.
例如，如果有人在会议室接听了电话，主持人应该和气地引导其离开，这样他的谈话内容不会干扰到回顾。
3
Confused, you stumble out into the lobby where, as luck would have it, you bump into an usher.