He had spent several uproarious evenings at the Embassy Club.他在使馆俱乐部度过了几个狂欢夜。We'd eat during the hot summer evenings on the front porch.在炎热的夏夜，我们会在屋前走廊上吃晚饭。In the evenings we eat by the light of an oil lamp.晚上我们便在一盏...
Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体.Temperature becomes uniform by heat conduction until finally a permanent state is reached.温度通过热传导变得一致，直到最终达到恒定状态。There is hardly any conduction...