Yabla video uses of 丰厚

因为 yīnwèi
他们 tāmen
懂得 dǒngde
环境 huánjìng
yuè
shì
恶劣 èliè
回报 huíbào
yuè
shì
丰厚 fēnghòu
Because they know, the more difficult it is, the higher payback it is.