含义和用法如下：
1. 指抓紧、不放开：
She held on to his arm for support.
她抓着他的胳膊，好站稳。
Michael held on to her arm, losing himself in the music.
迈克尔抓着她的手臂，沉醉于音乐中。
He held on to the rope and swung across.
他捉住绳子悠了过去。
She held on to the table to support herself.
她捉住桌子以支撑住自己。
It was so windy that I had to hold onto my hat all the way along the street.
风很大，走在街上我只好一起捉住帽子。
One man held on to the lawyer's sleeve.
有一个人捉住状师的衣袖。
He held onto the back of the chair to stop himself from falling.
他扶住椅子后背，以免跌倒。
Almost without thinking, I bent and gave her a hug. She held onto me tightly.
险些想也没想，我弯下腰来给了她一个拥抱。她也牢牢地抱着我。
How long can the climber hold onto the cliff?
这个登山者能捉住峭壁多久？
2.指保持、保留，留住，不给予，不卖掉或连续持有（房屋、财产等）；不放弃
Do you think you could hold on to that report for the next day or two?
你能把那篇宣布多留一两天再登吗？
I told him how we had fought to hold on to the company.
我给他讲了我们是如何极力争取保住公司的。
Firms are now keen to hold on to the people they recruit.
各公司现在都迫切地想要留住招聘来的员工。
Jane is determined to hold on to her fortune.
简决心要守住自己的财产。
The aggressors must not be allowed to hold on to the territories of other countries.
不容许侵略者赖在别国的领土上。
He was imprisoned for 19 years yet held on to his belief in his people.
他在监狱里被关了19年，但依然对公民充满信心。
The soldiers held on to the bridge for three more days.
战士们坚守住那座桥，又坚持了三天。
In fact, I held on to only one thing ， my memory.
事实上，我只保留了一样东西，我的影象。
She held on to a plan of her own.
她不肯放弃自己的操持。
She still held on to her job although many of her colleagues quitted.
只管有许多同事都辞职了，她仍旧坚持事情。
You're wondering why I held on to it.
你很奇怪，为何我要收藏着它。
The old man held onto his job stubbornly and would not retire.
那老人倔强地不肯分开事情岗位，不愿意退休。
People hold onto letters for years and years.
人们会将信件保存很多很多年。
We thought of selling this old furniture, but we’ve decided to hold on to it. It might be valuable.
我们曾想过卖掉这件旧家具，但我们决定保留它。它可能很有代价。
We should hold onto the house and sell it later when prices are higher.
我们应该连续持有这座屋子，等房价上涨时再把它卖掉。
You should hold on to your oil shares.
你应该保留（连续持有）你的石油股份。
The best thing for love is to hold onto each other in life.
爱情最美好的样子便是永不放弃彼此在生命的始末。
