Tosate
对甲苯磺酸基团
🗣️ 情景例句
You're making a mountain out of a molehill.
你在小题大做，把鼹鼠丘当成大山。
What is the total circulation of this publication.
这家刊物总发行量多少？
This immense chasm has been formed by an underground stream which has tunneled a course through a flaw in the rocks.
这个深邃的洞穴是由一条地下暗泉冲刷岩石中的缝隙并使之慢慢变大而形成的。