1. A millionth of an inch is an infinitesimal length.
    一英寸的百万分之一是极小的长度。

2. At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room.
    这会儿，书把地板的每一点空隙都占据了，我实际上是踩着这些书进出房间的。

3. And then he also made the mistake of drinking not one but two frosted glasses full, while everybody else had a half-inch "just for taste."
    接着他又犯了个错误：他喝了不是一杯，而是满满两大毛玻璃杯的葡萄酒，而其他人的杯子里都只有半英寸高的酒, "只是尝尝而已。"

4. Polly was proud of the fact that every inch of her apartment was touched by human hand at least twice a year.
    波莉房子里的每一寸地方每年至少都要人工清理两次，她为此深感自豪。