Swimming is helpful for bones that are porous and weak.游泳有助于改善骨质疏松和骨骼脆弱。The water slowly drained away, down through the porous soil.水慢慢流走了，渗入了疏松的土壤。He added sand to the soil to make it more porous.他往土里掺沙子以提高渗水性能....
Everybody still jumps up and down about being rid of tyrants.大家都还在为摆脱了暴君的统治而激动不已。The people suffered under foreign tyrants.人民在异族暴君的统治下受苦受难.Like other tyrants, he tried to silence anyone who spoke out against him.像其他暴君一样，...
珠宝商在他的店铺后面有一间作坊。The jeweller has a workroom at the back of his shop.珠宝商宣称这金刚石是真的.The jeweller pronounced the diamond to be genuine.珠宝商的展示使那些钻石更为醒目.The jeweler's display showed the diamonds to advantage....
I'm canvassing for the Conservative Party...我在为保守党拉选票。Members of Parliament are spending the weekend canvassing opinion in their constituencies.国会议员这个周末要向所在选区的选民征求意见。...his campaign organisers who are canvassing for...