I took the kids for a picnic in the park after school.放学后我带孩子们去公园野餐。The teacher kept the boys in detention after school.老师将这些男生课后留堂。The boys didn't know what to do with themselves after school ended.男孩们不知道放学后该做些什么....
含碳的铌合金,若在高温下受氧沾污,易产生脱碳现象.In niobium alloy containing carbon occurs decarburization in case of contamination by oxygen at higher temperature.含%碳的钢(铁碳混合物的低共熔点),含%碳的碳钢是纯珠光体.A mixture of ferrite cementite forming distinct la...
The jeweler charges lots of money to set diamonds in a bracelet.珠宝匠要很多钱才肯把钻石镶在手镯上.The jeweler's display showed the diamonds to advantage.珠宝商的展示使那些钻石更为醒目.The jeweler scrutinized the diamond for flaws .宝石商人仔细察看钻石有无瑕 庇...