As I see it, there are four keys to getting hired.

在笔者看来，如欲被聘用，应注意四个要诀。

youdao

If you want to save the bird, you must get the four keys to open the four doors.

如果你想救小鸟，你必须闯关拿到四把钥匙打开四扇门。

youdao

We decided to share with you four keys that allow you to live extraordinary relationships.

我们决定与你分享处理好人际关系的四把关键钥匙。

youdao

Of the four keys belonging to the padlock that secured the bag in which Williams was found, one pair was found inside it with him.

CNN: STORY HIGHLIGHTS

We were able to log up to 13 simultaneous key presses on the chiclet clacker, depressing at least four keys on each row of the board's QWERTY alphabet without conflict.

ENGADGET: Razer Blade review (late 2012)

That has opened the floodgates for startups like SwiftKey, which builds a predictive Android keyboard that tries to anticipate what a user is trying to type, and Snapkeys, a futuristic-style keyboard that consists of only four keys, to remake the keyboard on Android smartphones.

WSJ: The Future of Typing