Cryptopyrrole
[化] 隐吡咯; 2,4-二甲基-3-乙基吡咯
🗣️ 情景例句
Just imagine--Marilyn and Richard must be thrilled!
想像得出 Marilyn和Richard一定乐坏了！
Still waters have deep bottoms.
静水常深。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。