Operational system management
[计] 操作类型应用
🧩 词语组成解析
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
Better late than never.
迟做总比不做好。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前，我们只知道海洋是二维平面形的，以及靠近陆地浅水区的深浅不一能给航行带来危险。