Security maintenance
[计] 安全维护
🧩 词语组成解析
🗣️ 情景例句
for reading to the kids in the hospital.
为住院的孩子朗读。
As soon as you have drunk, you turn your back upon the spring.
忘恩负义。
She looked at it critically for a moment.
她认真的看了好一会儿。