Dianil
双苯胺
🗣️ 情景例句
We are running a special offer on this holiday.
我们在这个假期有个特价优惠。
It is one thing to speak much and another to speak pertinently.
话讲得多是一回事，讲得恰当是另一回事。
Suppose every sensor gives perfectly accurate readings of temperature,
再假定每个传感器都极端准确地读出了温度、