Fischer's acid
[化] 费歇尔酸; 2-萘酚-6-磺酸
🧩 词语组成解析
🗣️ 情景例句
you've made a very strong impression
你已经留下了非常深刻的印象
It is easier to descend than to ascend.
下降容易上升难。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-