Thumb-nail
n. 拇指指甲；極小的東西；短文\\na. 極小的, 極短的
?? 牛津釋義
thumb-nail
n nail at the tip of the thumb 拇指的指甲. adj [attrib 作定語]
briefly written 文字簡潔的
a thumb-nail sketch/portrait/description of sb/sth 對某人[某事物]的簡略描述.
?? 詞語組成解析
thumb
[θ?m]
n. 拇指;（手套的）拇指部份;
vi. 翹起拇指請求搭乘（過路汽車），示意請求搭便車;翻閱;
vt. 翻閱;作搭車手勢;用拇指翻臟[翻壞]（書頁等）;
nail
[nel]
n. 釘子;指甲，趾甲;釘狀物;納爾;
vt. 釘住;抓住;使固定;揭露;
??? 情景例句
I'm looking forward to the weekend.
我在期待著周末的到來。
A guilty conscience is a self-accuser.
做賊心虛，良心自誅。
He has deliberately chosen to lead the life he leads and is fully aware of the consequences.
他是故意在選擇過那種生活的，并完全清楚以這種方式生活的后果。