You can pay to be upgraded to a business class seat.你可以付费升级到商务舱。Helicopters have been upgraded and modernized.直升机已经更新换代，装配了现代化设备。They upgraded the land by improving it with new buildings.他们建造新楼房来提高土地的等级....
土壤中的养分除氮外, 最初的来源都是母岩.The nutrient in soil divides nitrogen outside, prime source is Mu Yan.另外,还简略介绍了生物除氮磷的基础理论.It also summarizes basic principles on biological nitrogen and phosphorous asas some new significant views....
Absence sharpens love, presence strengthens it.相聚爱益切,离别情更深...the new constitution, which strengthens the government and enables it to balance and check the powers of parliament and president...巩固了政府的地位并使其能够制衡国会和总统权力的新宪法S...
I think Simon was hurt by your abruptness this afternoon.我觉得你下午的粗鲁行为对西蒙造成了伤害。He hid his feelings behind a gruff abruptness.他把自己的感情隐藏在生硬鲁莽之中.Suddenly Vanamee returned to himself with the abruptness of a blow.伐那米猛地清醒过来,象挨到...