Sonolite
斜锰硅石
🗣️ 情景例句
Advice doesn't normally come cheap, but this piece is for free...
通常来说，忠告都是价值不菲的，但这个是免费赠送的。。。
Don't mention it.
不必谢。
The editor at once sent the journalist a fax instructing him find out the exact number of steps and the height of the wall.
”编辑立即给那位记者发去传真，要求他核实一下台阶的确切数字和围墙的高度。