know how

基本解釋

She held back，not knowing how to tell him the bad news.
她躊躇著不知道應該怎么把這個壞消息告訴他。
Knowing how to thank someone using this phrase will set you apart from the average English learner!
懂得如何用這個句子來感謝別人，將使你與一般的英語學習者截然不同！
This mode is useful in situations where you know when a task starts and stops but have no way of knowing how far the task has progressed.
這種模式在這樣幾種情形下是有用的，您可以知道一項任務何時開始以及何時停止，但是您沒法知道任務進展了多遠。

He says knowing how to do this may be especially valuable if fossil fuel should become unavailable.
Mr. Carl Icahn: Well, it's hard to recommend how to invest at this time without knowing how much capital you have.
伊坎先生：嗯，在當今形勢下,如果不知道你有多少資本,那就很難給你投資建議。
耶魯公開課 - 金融市場課程節(jié)選
This calculation wasn't done very frequently; that's just if you had one of the satisfactions of knowing how much money you were making.
這個運算并不經(jīng)常用,除非你非得知道,自己會賺多少錢
耶魯公開課 - 金融市場課程節(jié)選

Knowing how to judge these support and resistance levels is essential, in my opinion.
FORBES: 10 Small Caps Flashing Buy Signs