它有好几个意思
通常的意思有：坚持，！继续；等等；忍住；抓住等等。
例句：
讲电话时：Please hold on.请稍候
叫住别人时：Hold on, please.请等一下。
Hold on！buddy 兄弟，要挺住啊
Hold on a minute 停一停
He held on to the rock to stop himself slipping. 他紧紧抓住岩石以免往下滑.
You should hold on to your shares. 你应该继续保留股份.
I think I can hold on much longer. 我觉得自己还能坚持.
追问谢谢