A 15-year lifespan is not uncommon for a dog...15年的寿命对狗而言是比较常见的。They postulated a 500-year lifespan for a plastic container.他们假定塑料容器的寿命为500年。Most boilers have a lifespan of 15 to 20 years.绝大多数锅炉有15至20年的使用期限。The average l...
疾风知劲草,烈火见真金.Sturdy grass withstands high wind ; true gold stands the test of fire.疾风知劲草.The strong wind reveals the strength of the grass.一阵疾风吹翻了小船.A flurry of wind upset the small boat....