Security maintenance
[计] 安全维护
🧩 词语组成解析
🗣️ 情景例句
We should all take a little break before dessert.
吃甜点之前我们大家应该稍微休息一下。
The lumberjack sweats as he cuts down a tree.
伐木工人边砍树边擦汗。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。