Security maintenance
[计] 安全维护
🧩 词语组成解析
🗣️ 情景例句
It's really different from what I expected.
这和我想象中的很不一样。
Mary gave birth to a baby last week.
玛丽上星期做妈妈了。
Football is a very popular game in China. Many young people like it.
足球在中国是一项很受欢迎的运动。许多年轻人喜欢足球。