Someone has parked his car right in front of mine.有人把他的汽车正好停在我的车子前面。There were bird droppings all over the car parked under the tree.停在树下的车上全是鸟粪.A car parked in front of the building.楼房前面停着一辆车。She parked her bag at the c...
Some outraged readers said the story was extremely offensive and distressing.一些感到义愤的读者说这篇报道极为令人反感，而且非常伤人。Could you qualify his behavior as offensive?你能把他的行为说成是咄咄逼人 吗 ?The West African forces went on the offensive in resp...
Exciton is electron - hole pair held together by their mutual Coulomb interaction.激子就是由电子和空穴在相互间的库仑力作用下,相互维持在一起的电子 -- 空穴对.As to the emission at 370 nm, It'should result from exciton recombination radiation.而在370nm处的...