Does a wild donkey bray when it has grass, or an ox bellow when it has fodder?

野驴有草岂能叫唤，牛有料，岂能吼叫。——《旧旧·伯》。

youdao

Does a wild donkey bray when it has grass, or an ox bellow when it has fodder?

野驴有草岂能叫唤，牛有料，岂能吼叫。——《旧旧·伯》。

youdao