Methylene
n. 亚甲基\\n[化] 亚甲基
🗣️ 情景例句
No way. I must get everything ready before noon.
不行啊，我必须在中午前把一切都做好。
If he doesn't take care of him, I will.
如果他不，我将照顾他。
Do you often have sports at school?
你在学校经常参加体育活动吗？