It is the only tangible object the astronomer can handle.这是天文学家能够掌握的唯一可接触的对象.FRAN ? OISE COMBES, an astronomer at the Paris Observatory, is a leading expert on galaxy dynamics.康布任职于法国的巴黎天文台, 她是研究星系动力学方面的顶尖天文学家.There was ...
An astronomer can determine the brightness of each star.天文学家能够测定每颗恒星的亮度。A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意.It is the only tangible object the astronomer can handle.这是天文学家能够掌握的唯一可接触的对象....
Don't write or draw on the wall.不要在墙上写字或画画.He draw on his cigarette and blow out a stream of smoke.他吸了一口香烟,吐出来一股烟雾.Everyone had two sheets of paper to draw on.每个人有两张可画画的纸....
一朵小小的浪花飞溅在我的脸上，紧接着更多的浪涌过来。A little wave, the first of many, splashed in my face.海水冲击礁石, 激起高高的浪花.Swashing against the rocks, the breakers sent up a fountain of spray.我们被海水的浪花溅湿.We were wet with the sea spray....
土壤的酸性可以通过在它上面撒石灰来中和.Acidity in soil can be neutralized by spreading lime on it.土壤里的石灰对某些植物有害.Lime in the soil is detrimental to some plants.许多土壤中都含有石灰.Lime exists in many soils....
MILWAUKEE, Feb. 29, 2008 ? Rockwell Automation will acquire the Safety and Automation business of CEDES AG.密尔沃基2月29日消息 —— 罗克韦尔自动化将收购CEDES公司的安全和自动化业务.Rockwell Automation defines sustainable production as cleaner, safer mo...