单词：boric acid ointment
单词：boric acid ointment 相关文章
Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
(科普英语)Earth and Sky
This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 Israeli researchers say they have developed a substance that attracts and kills mosquitoes infected with the malaria parasite. However, the sweet smelling
2011年VOA慢速英语(二)月
[00:00]C：We need to talk. [00:01]You see, you and I have something in common. [00:06]P：Sounds familiar. Appetite for destruction? [00:10]Contempt for the czars of fashion? [00:13]Wait, don't tell me... naked sexual charisma. [00:19]C：Batman. Th
从零开始学口语
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
今天要讲的习惯用语显然表示人们对身边那些虫子的恶感。比方说，今天要学的习惯用语：fly in the ointment。 fly是苍蝇，ointment是油膏或者药膏。可想而知小小的苍蝇掉进了一缸油膏里，可不是
美国俚语
Israeli(以色列) researchers say they have developed a powerful bait that effectively attracts and kills malaria-infected mosquitoes but is completely harmless to humans and other animals. The toxic sugar bait developed by scientists at Hebrew Univ
英语新闻