Derris
n. 鱼藤, 鱼藤酮(一种杀虫剂)\\n[医] 鱼藤属
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
I am really proud of my department and my staff.
我为我的部门和员工们感到骄傲。
Fortunately, however, ancient men made tools of stone, especially flint,
然而， 幸运的是，远古人用石头制作了工具，特别是用燧石，