Edna
[化] 二硝基乙胺
🗣️ 情景例句
I'm afraid not. We don't generally accept a letter of credit.
恐怕不行，我们一般不采用信用卡。
The fire is the test of gold; adversity of strong man.
烈火试真金，困苦练壮士。
He has tasted the sweets and bitters of life.
他已尝遍了人生的甜酸苦辣。