英语鼓励学习谚语(8)

41、胸有千秋业，腹有万卷书。
There are thousands of books in the belly and thousands of books in the chest.
42、宝剑不磨要生锈；人不学习要落后。
Swords must rust before they are ground; people should lag behind when they are not learning.
43、好铁要经三回炉，好书要经百回读。
Good iron goes through three hearths and good books go through a hundred.
44、刀钝石上磨，人笨勤奋学。
Knives and blunt stones are polished, and people are stupid and diligent.
45、逆水行舟，不进则退。