Landsberger apparatus
[化] 兰兹伯格尔测分子量器
🧩 词语组成解析
🗣️ 情景例句
What does John do?
John现在做什么事？
May I pay by credit card?
我可以用信用卡付款吗？
Aunt Harriet could not find words to praise Bessie's industriousness and efficiency.
哈丽特不知该用什么言辞来赞扬贝西的勤奋与高效。