Diaminoditolyl
二甲基二氨基联苯
🗣️ 情景例句
Can I see it?
我可以看吗？
Why not go out for a walk?
干吗不出去散步？
It is not a simple competition for a fixed amount of food determined by the physical environment,
它已不是为了争得物质环境所决定的有限食物而进行的简单竞争了，