If she can't curb this trait and you don't want the friendship to end, limit how long you let her go on about herself; then give yourself equal air time.

如果她不能抑制这种性格，而你不也想终结这种友谊，就限制她谈论自己的时间；然后，给自己同样长的时间发表意见。

youdao

Take a deep breath and see how long you can stay underwater.

深吸一口气，看你能在水里待多久。

《牛津词典》

Please tell me how long you have learnt English.

请告诉我你学英语多久了。

youdao

And we do. Cracking jokes,grins, Long past the crack of dawn Like"How long will you be up?"

VOA: special.2009.04.17

You see how long you are in the air and the whole time you are in the air, you are traveling horizontally at this speed.

你可以知道在空中停留的时间,当你在空中运动的时候,你一直以这个水平速度在运动

耶鲁公开课 - 基础物理课程节选

You told me that you've written plays by yourself. How long did it take you to finish them?

你告诉我你自己写剧本。写完一个剧本要多久呢？

灵感从何处来 - SpeakingMax英语口语达人

Decide how long you can struggle before one or both of you has to walk away.

FORBES: Look Before You Leap into a Partnership

Ask your doctor how long you will need to continue taking these medications once you recover.

CNN: Broken heart syndrome

You may start by asking yourself how long you think you might live. 30-50 years?

FORBES: Why the Buy and Hold Strategy Can Work. Part Three