人老了,关节也硬化了.The man is getting old and his joints are stiff.塑料被注入模子后,便放在一边让它慢慢凝结硬化.The plastic was poured into the mold and left to set until it was firm.高温使陶土硬化。Great heat indurates clay....
We learned by actual experience that practice makes perfect.我们从实际经验中认识到熟能生巧.Skill is acquired through repeated practice, and practice makes perfect.久练为熟, 熟能生巧." Practice makes perfect. " is a proverb.“ 熟能生巧 ” 是一句谚语....