Hold on tight to the trolley so that you don't fall out.
牢牢抓紧购物车，这样你就不会掉下去。
I think that Milan will hold on tight to the boss, at least I hope so.
我认为米兰不会放他走，至少我希望是这样。
Hold on tight to these keys — you will use them extensively for encryption and digital signatures.
一定要掌握好这些密钥——您将大量使用它们加密和数字签名。
应用推荐