Transpolyisoprene
反式聚甲基丁二烯
🗣️ 情景例句
She just said it's too easy.
她仅仅说它太容易了。
What is thelargest industrial center in this country?
这个国家最大的工业区是哪里？
who put his questions to nature instead of to the ancients,
他向自然界而不是向古人提出问题，