Life on Earth will become unsustainable unless population growth is held in check.人口增长要是不加控制的话，地球上的生命将无法持续发展。The story in Estonia and Lithuania is similar — and looks equally unsustainable.爱沙尼亚和立陶宛情形也与之相似,都不能持续下去.No one ...
I will endeavour to arrange it.我会尽力安排。Please make every endeavour to arrive on time.请尽全力按时到达。The shuttle Endeavour will be taking the astronauts to the Hubble.“奋进”号航天飞机将把宇航员送上哈勃....
She was unable to keep back her tears, and wept freely.她抑制不住泪水, 痛痛快快地哭了起来.A slow learner can keep back the whole class.反应迟钝的学生会影响全班的进步.I asked the spectators to keep back from the sideline.我要求观众们不要走近边线....
Have you studied the composition of the chemicals?你研究过这种药品的成分了吗?These chemicals make the fruit inedible.这些化学品使这种水果不宜食用.Chemicals Stocks, Ferroalloy and Products, PVC Resins, Plastic Raw Material, Chemical Supplies.采购产品股票...