单词:
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SCIENCE IN THE NEWS - A Death in the Family May Cause Real Heart Break SHIRLEY GRIFFITH: This is SCIENCE IN THE NEWS, in VOA Special English. Im SHIRLEY Griffith. MARIO RITTER: And Im Mario Ritter. Today, we tell about an American study of heart atta
Idiom: Needle and a haystack 大海捞针 Hit the book: Master As well as Mood Chemical Be stuck on Discover
Geophysicist Probes Ocean's Secrets Today, Pitman is a distinguished professor of geophysics at Columbia University, and the recipient of many of his fields most coveted honors. Even though he is now in his 80s, Pitmans animated manner makes it easy
释义: Stack:干草堆;Something that is extremely difficult to find. Anything that's on the verge of being impossible.很难找到的东西,也就是大海捞针; 来源: Today, this phrase is typically said as It's like trying to find
This is the VOA Special English Health Report. For medical students, real experience begins not in a classroom but at a teaching hospital. These doctors in training are supervised. But sometimes accidents happen and the students get injured. For exam