Actionchitin
[机] 线菌壳多糖
🗣️ 情景例句
I owe you an apology for what I did last night.
我应该为昨天晚上的事向你道歉。
Jeff was not pleased with his school grades.
杰夫不满意自己在学校的成绩。
I see, that's what we will order.
哦，我们要订的就是那种。