But parasites are everywhere, land, sea, even air — they make up as many as half of all animal species.

但是寄生虫无处不在，陆地上、 海洋里、 甚至是空气中 —— 它们占了动物种群的一半。

In September 2017, Pessina had to settle for buying 1,932 Rite Aid stores, less than half as many as his original target.

2017年9月，佩斯纳不得不接受收购1932家来德爱公司的交易，这个数量不足他最初目标的一半。

There are few bee-keepers, however, who own half as many as this, or who give their undivided attention to the business.

然而，很少有养蜂人拥有如此多的养蜂人， 或者全神贯注于这项业务。

Millions of Americans are expected to travel for Thanksgiving, although the total number hitting the road could be less than half as many as last year.

数百万美国人预计将在感恩节出行，尽管上路的总人数可能不到去年的一半。