随着细胞数量的减少，免疫系统开始失效，之后，像肺结核这样的感染则会趁虚而入。
As the cell count drops, the immune system begins to fail and opportunistic infections such as tuberculosis take hold.
这使得机器人乌鸦趁虚而入，一飞冲天，下潜和扇动它的翅膀比老款车型，它的翅膀只能同时移动。
This enables the Robo Raven to swoop, soar, dive and flap its wings in a much more aerobatic way than older models, whose wings could only move simultaneously.
尽管尼古拉斯·阿内尔卡是联赛的最佳射手，但是他的进球不过是靠运气，或者对手在场后他趁虚而入罢了。
Nicolas Anelka is the league's top-goal scorer but many of his goals have been scratchy and come only after opponents have already gone behind.
Mediaset则趁虚而入，在2005年买下了地面数字电视的足球转播权，并开展了自己的付费电视业务。
Mediaset duly bought football rights for digital terrestrial television in 2005 and launched its own pay-TV service.
为了保持利润水平，苹果决定不提供廉价机型，也没有将平台软件授权给其他厂商，因此在市场上留下了让跟风者趁虚而入的空间。
Apple decided to maintain its profit margins and has not expanded by offering cheap models or licensing its software to others, leaving ample space in the market for the copycats to dominate.
为了保持利润水平，苹果决定不提供廉价机型，也没有将平台软件授权给其他厂商，因此在市场上留下了让跟风者趁虚而入的空间。
Apple decided to maintain its profit margins and has not expanded by offering cheap models or licensing its software to others, leaving ample space in the market for the copycats to dominate.
应用推荐