Maintenance safeguard
[计] 维护安保措施
🧩 词语组成解析
🗣️ 情景例句
He was very kind.
对人和蔼。
Between the cup and the lip a morsel may slip.
功亏一篑。
In less than a minute, it roared past them only a few feet away.
不到1分钟的工夫，它从离他们只有几英尺远的地方呼啸着驶了过去。