布莱克很熟练地跳上了船，他的重量使小船微微向下沉了沉。Blake jumped in expertly; the boat dipped slightly under his weight.即使重量仅有1克的二十分之几都可能是关键性的。A few twentieths of a gram can be critical.我学会了如何称出袋装种子的重量。I learned how to weigh out packages of seed...
For once, the artist's fertile imagination failed him...这位画家丰富的想象力曾一度枯竭。The operation cannot be reversed to make her fertile again.手术结果不可逆转，无法让她恢复生育能力。The Valley of Vinales is a lush and fertile valley and one of Cu...