Picolyl
吡啶甲基, 皮考基
🗣️ 情景例句
I don't know about that.
我表示怀疑。
That street is only two miles long.
那条街仅仅是2英里长的。
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理过程中，常常使用氧气切割和焊接金属板或金属管。