Even one gas molecule can break a silicon-oxygen bond in glass, generating a defect, said Carlo G. Pantano, a professor of materials science at Pennsylvania State University.
“一个气体分子就可以破坏玻璃的硅氧键，并诱生一个缺陷。”Pennsylvania州立大学的材料科学教授Carlo G . Pantano说。
2
But the year ended with a record-break in g December, as people bought consoles and games for Christmas.
但是由于圣诞节期间人们购买游戏机和电玩游戏，2009年12月份的销量创造了历史新高。
3
When you have done something wrong (e. g. break something), will your parents or seniors punish you?