Ethylene
n. 乙烯\\n[化] 乙烯; 1,2-亚乙基
🗣️ 情景例句
What's troubling you?
你有什么麻烦？
Mr. Smith is still in his forties.
史密斯先生才四十几岁。
Such creatures have rarely been seen alive by man as they live at a depth of six hundred feet.
人们很少能看到活着的这类动物，因为它们生活在600英尺深的水下。