The syndrome is more likely to strike those whose immune systems are already below par.这种综合征更容易对那些免疫系统已经低于正常水平的人构成威胁。That is roughly on par with the M 1 money supply, which quantifies liquid money in circulation.这笔钱与流通领域...
借助于自己发现的一种全新的方法，他获得了成功。He succeeded with the aid of a completely new method he discovered.观测工作借助于各种望远镜。The observational work is carried out on a range of telescopes.船借助于雷达在浓雾中航行.The ship, with the help of radar, sailed ...