lock 锁
Looks are used for safety and security. So,generally, the front door needs a stronger lock. It is still better to equip with a burglar -alarm lock . money, important papers and valuable objects such as jewels must be locked up ,or put under lock and key.
Good students are well-prepared for tests and examinations. But lazy students are not. They open their books to look for the answers only after they have failed. That is what people call “locking the stable door after the horse has been stolen”.
锁是用来维护安全的。因此一般来说,正门需要有强力的锁。装上防盗警报锁,那就更好。金钱、重要证件以及珠宝之类的值钱物品都应当锁好妥为保存。
好学生对测验考试做充分准备,而懒学生却不是这样的。他们考不及格才翻开书本寻找答案,这就是人们所称的“事后提防”,也就是马被偷之后才锁上马厩。(locking the stable door after the horse has been stolen)。