Polyisobutene
聚异丁烯; 聚异丁烯
🗣️ 情景例句
It's not the same.
那可不一样。
I thought so, too.
我也这样以为。
After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.
快艇过去之后，他们以最快的速度向前游去，因为他们知道快艇马上就要转回来。