Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
Come and sit down for a minute, Michelle.
过来坐一会儿， Michelle。
To fish for a whale
捕鲸
The party then searched the whole cave thoroughly but did not find anything except an empty tin trunk.
队员们接着又把整个洞彻底搜寻了一遍，但除了一只空铁皮箱外什么也没找到。