青足鹬产于欧洲的一种涉禽 ( 鹬属青脚鹬 ),腿绿色,喙长.A European wading bird ( Tringa nebularia ) having greenish legs and a long bill.它的喙长得象一根垒球棒, 尖得象一把细长的利剑.It looks like the beak of a softball stick, like a slender tip of the sword....
A proton is an elementary particle of matter.质子是物质的基本粒子。An electron has a negative charge, a proton has a positive charge.电子带负电荷, 质子带正电荷.The hydrated proton has been included in the calculations as one ion.水合质子作为一种离子包括在计...
a lifelong fascination with Baroque music一生对巴罗克音乐的迷恋A more widespread interest in baroque music developed only slowly in the Sixties and Seventies.六七十年代人们对巴洛克音乐的兴趣只得到了缓慢的发展。...Paul Muldoon, who is among the most baroque ...
镰状细胞病患者是否有更高的感染机会?Are patients with sickle cell disease at greater risk of infection?止血带能否用于镰状细胞病患者?Can tourniquets be used in patients with sickle cell disease?镰状细胞紊乱 、 镰状细胞病和镰状细胞性贫血之间有何差异?Is there a difference between ...