You might write them down somewhere or you can just keep them in your head.

你可以把它们写到什么地方，或者仅仅是放在脑袋里。

youdao

Working on a goal can be like climbing a mountain you think if you just keep your head down and go you'll get to the top quicker.

执行一个目标就像爬山，你认为如果只顾低着头爬就会很快到达山顶。

youdao

Keep the head aligned with the torso, you should be looking down to the water surface about two meters (6 feet) in front of you.

使头部和躯干对齐，你应该注意到水面约两米(6英尺)在你的面前。

youdao

The only thing you can do is keep your head down and keep going, and that's what I've told Zack.

WSJ: Mets' Wheeler like to start season at Triple-A

But for the rest of you who work hard and obey the law and keep your head down and just want to find a way to live legally in a country you consider your own and where you've lived most of your life, let me first apologize for lumping you together with the demanders.

CNN: If I offended demanding DREAMers, I'm not sorry

Similarly, if you want to avoid threatening someone else, keep your eyes lowered and your head down.

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