Prehnitene
[化] 连四甲苯; 1,2,3,4-四甲基苯
🗣️ 情景例句
Not a lot.
没什么重要的事啦。
Can you keep an eye on the baby while I go shopping?
你能否在我上街买东西的时照看一下孩子？
He didn't often go to look for food himself.
他不经常自己去寻找食物。