Prodag
半胶态石墨悬浮液
🗣️ 情景例句
And, Carl, you join in at any time.
还有Carl， 你随时都可以加入。
A little of every thing is nothing in the main.
每事浅尝辄止，事事都告无成。
but he was in such a bedraggled condition than an assistant refused to serve him.
但店员见他浑身泥水的样子，竟不肯接待他。