如果你看到某件事情需要做，在没被指示之前就做好它，而且，如果你的上司在一个团队中开口要求帮忙的话，第一站起来。
If you know something needs to be done, do it without being prodded, and if your boss asks for help in a group setting, be the first to volunteer.
通过其中一个开口放置关节镜，这是一个观察设备，允许外科医生看到膝关节内部。
An arthroscope is placed through one of the openings. This is a viewing device that allows the surgeon to see inside your knee.
这些狗被放在一个前端有个开口的大木箱中，通过开口他们可以看到各种刺激。测试时每次一条狗。
The dogs were placed in a large wooden box with an opening at the front to allow for them to view various stimuli. They were tested one at a time.
这些狗被放在一个前端有个开口的大木箱中，通过开口他们可以看到各种刺激。测试时每次一条狗。
The dogs were placed in a large wooden box with an opening at the front to allow for them to view various stimuli. They were tested one at a time.
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