如果您带着您的笔记型电脑旅行，买把锁。

If you travel with your laptop, get a lock.

youdao

如果你有一辆昂贵的自行车，买两把锁是值得的。

If you have an expensive bike it's worth buying two locks.

youdao

我要给我家大门买把特大号锁，把我的孩子再抱紧些，然后坐迎风暴。

I'm going to buy an extra-big lock for my door, hug my kids a little tighter, and sit out the storm.

youdao