thumb[θʌm]n.拇指 v. 以拇指拨弄
◇ be all fingers and thumbs=be all thumbs 笨手笨脚
bite the thumbs at 嗤之以鼻，藐视
by rule of thumb 估算
thumb alift 示意要搭车
thumb through 翻查
turn down the thumb 表示反对
under sb.’s thumb 在…支配下…势力下
‖ thumb blue 靛蓝
thumb pad 凹形垫
thumbhole stock 有拇指孔的枪托
thumb protector 拇指护套
thumbs around grip 普通握
thumbed-in landing 迫降
thumbless grip空握
thumbnail n. 略图，微型画，“豆腐干”（文章）/ thumbtack n. 按钉，图钉 |