1. "Get down. Get down," the thin one ordered. He grabbed my glasses and tossed them onto the lawn.
    "趴下，趴下，"那小个子命令我，并一把摘下了我的眼镜，把它扔到草坪上。

2. Poor food and hard work impaired her health and she became thin .
    不好的食物和辛苦的工作损害她的健康，使她变瘦了。

3. My knees are shaking, my heart is beating wildly and my head is enclosed in a crash helmet (防撞头盔) that seems much too thin.
    我的双膝发抖，心狂跳不止，头戴的防撞头盔看上去似乎太单薄了。

4. I reach for the long, thin fingers that are lying on the chest.
    我伸手去触摸她放在胸口的细长手指。

5. Fiber-optic cable, for example — made up of hair-thin glass fibers — is a tremendously efficient carrier of information.
    例如，光纤电缆 -- 由细如发丝的玻璃纤维制成 -- 是一种极为高效的信息载体。