Transpolyisoprene
反式聚甲基丁二烯
🗣️ 情景例句
I think so.
我想行了。
He said he spoke a little English.
他说他会说一些英语。
The situation seemed hopeless and he knew his life was in danger.
这种情况看来是毫无希望了，他知道他有生命危险。