This is actually a natural defense reflex to avert us of little creepy crawlers.这实际上是由于有小小蠕动物的警觉而产生的一种自然的对抗反射.I would do what I could to avert it.我会尽力去避免发生这种情况....talks to promote free trade and avert increasing protecti...
Remember, keep a positive attitude and good things will happen.记住：保持乐观的心态，好事自然会发生。Do not wait for good things to happen to you. You need to walk towards happiness.不要等待好事降临，你要向幸福进发。Good luck is when an opportunity comes a...
地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.在蛋自质中, 氮原子与碳 、 氢、氧原子相化合.In proteins, atoms of nitrogen are combined with carbon...