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。
2
On top of all that, a new study published in the journal Learning and Memory finds you are probably better off sleeping than making last-minute preparations for a test.
除此之外，一份刊登在《学习与记忆》日报上的研究发现睡觉比临时抱佛脚更有可能得到好结果。
3
The bottom line is that you need to study, eat a good meal, sleep well on the eve of the test, and believe that your efforts will pay off.