Backstroking
n. 仰泳；反手击球\\nvi. 仰泳；反手击球\\nvt. 用反手击
🗣️ 情景例句
and writing the background for Family Album,U.S.A.--
为Family Album,U.S.A.撰写背景说明的年轻人
Perhaps you've heard our product's name. Would you like to know more about it?
也许你已听说过我们产品的名称，你想知道更多一点吗？
runs the gentle slope of the continental shelf, geologically part of the continents.
从地质学上来说，它是大陆的一部分。