Fluorubber
氟橡胶
🗣️ 情景例句
He is in a good mood.
他的心情很好。
I often go out in the morning.
我常常在早上出门。
While early settlers had killed bison for food, now the killing became more widespread.
早期的殖民者只是以杀野牛为食，这时屠宰野牛就更为广泛了。