Estergum
松酯胶, 酯树胶
🗣️ 情景例句
I think I'm a cooperative worker.
我认为我具有合作精神。
What's your general impression,may I ask?
不知您对我们厂总的印象如何？
I have just received a letter from my old school, informing me that my former headmaster,
我刚刚收到母校的一封信，通知我说以前的校长