Jones reagent
[化] 琼斯试剂
🧩 词语组成解析
jones
[[dʒəunz]]
n. 琼斯（姓氏）
reagent
[ri(:)'eidʒənt]
n. 反应物，试剂;
🗣️ 情景例句
We are quite interested in the joint venture.
我们对合资经营很感兴趣。
How long does it take?
火车要开多久？
How Harry managed to keep a straight face during these performances is quite beyond me.
我实在想像不出哈里在这些表演中是怎样装出一本正经的样子的。