1、I keep a lot of things under lock and key - most foodstuffs, cleaning materials, the hamster.
我把家里的很多東西都鎖起來(lái)- - -大多數(shù)是食品，洗滌用的東西，還有我們養(yǎng)的倉(cāng)鼠。

2、In the meantime, the comic book remains under lock and key with the Halland police.
在這期間，唐老鴨漫畫書(shū)仍由哈蘭警方妥善保管。

3、I love my new smartphone so much, I keep it under lock and key when I am asleep.
我很愛(ài)我的新智能手機(jī)，睡覺(jué)時(shí)將它保管得妥妥的。

under lock and key翻譯