🧩 词语组成解析
abbr. 炼油工程师(Petroleum Refining Engineer)
confederation
[[kənˌfedə'reiʃən]]
n. 同盟, 联盟, 组织联盟
🗣️ 情景例句
How long does your vacation last?
你的假期有多长?
Never offer to teach fish to swim.
切莫教鱼游泳。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群,这一进展比较容易。