他死于劳累过度引起的心脏病发作。He died of a heart attack brought on by overwork.他可能会因为劳累过度而英年早逝。He might burn himself out and go to an early grave.黑格注意到了他“看上去消瘦,非常劳累”的样子。Haig noted how he "looked pinched and rather tired"....
异构体被定义为化学式相同而结构不同的化合物.Isomers are defined as compounds having the same formula but different structures.由于这种编码关系, 碱基的三联体被称为密码子.Because of this coding relationship, triplet of bases is called a codon.核膜内陷,于是溶酶体被内在化.The nu...