各调节物质改变了成铃物质基础。

Matter basis of cotton fruiting was changed.

youdao

把铃换成床，食物换成睡眠，从理论上说，人也就类比成狗了。

Replace the bell with a bed and food with sleep and conceptually you're there.

youdao

把铃换成床，食物换成睡眠，从理论上说，人也就类比成狗了。

Replace the bell with a bed and food with sleep and conceptually you're there.

youdao