Ethylene trichloride
[化] 三氯乙烯; 三氯代乙烯
🧩 词语组成解析
n. 乙烯\\n[化] 乙烯; 1,2-亚乙基
n. [化]三氯化物
🗣️ 情景例句
Second, we have to make an effort to encourage American companies to do business in our country.
第二，我们必须鼓励美国公司在我国开展业务。
I said, Do you need any help?
我是说:你需要帮忙吗？"
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.
他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。