日期:
来源:雅诚德英语网
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
她经常把装有放射性同位素的试管放在口袋里,对试管里发出的漂亮的蓝绿光赞不绝口。
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
她经常把装有放射性同位素的试管放在口袋里,对试管里发出的漂亮的蓝绿光赞不绝口。