Remember the way dictionary works, this is the key. Is the key of a value.

记住这个字典的工作原理，这是关键，它是值的关键。

麻省理工公开课 - 计算机科学及编程导论课程节选

Right now it's got that second key word there called pass, which is just Python's way of saying there's an empty body in here.

现在我在完善它的一个简单部分,但是首先，类是用来干什么的呢？,把类认为是可以创建一个。

麻省理工公开课 - 计算机科学及编程导论课程节选

Again, each of them seems to represent, in a superior way, the key components of the human soul, the appetitive, the war-like or spirited, and the rational.

每一位角色，似乎都代表着，较优秀的人类灵魂的关键构成要素，欲望，战士精神，以及理性。

耶鲁公开课 - 政治哲学导论课程节选

The way key people repeatedly walked out on Wings also implied tensions which McCartney simply shrugged aside.

BBC: Tarred feathers

An easy-to-use wheel helps to adjust the focus, while a five-way key pad helps to navigate the menu.

ENGADGET: Toshiba outs Lumileo pico projectors, only one of which requires a plug

This powerfully performing camera has been built around a hybrid user interface, which allows photographers the choice of controlling the camera via the touchscreen or a five way manual key.

ENGADGET: Samsung launches six new point-and-shoot cameras at CES