Ethanetetrayl
[化] 联亚甲基; 联二亚甲基
🗣️ 情景例句
with the school-board committee.
与联合校董会有关。
That radio's pretty loud. Could you turn it down, please?
收音机太响了，你能把声音开小一点吗？
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。