Thumb-nail
n. 拇指指甲；极小的东西；短文\\na. 极小的, 极短的
📖 牛津释义
thumb-nail
n nail at the tip of the thumb 拇指的指甲. adj [attrib 作定语]
briefly written 文字简洁的
a thumb-nail sketch/portrait/description of sb/sth 对某人[某事物]的简略描述.
🧩 词语组成解析
thumb
[θʌm]
n. 拇指;（手套的）拇指部份;
vi. 翘起拇指请求搭乘（过路汽车），示意请求搭便车;翻阅;
vt. 翻阅;作搭车手势;用拇指翻脏[翻坏]（书页等）;
nail
[nel]
n. 钉子;指甲，趾甲;钉状物;纳尔;
vt. 钉住;抓住;使固定;揭露;
🗣️ 情景例句
What's the exchange rate today?
今天的兑换比率是多少？
Yes, I have your eraser, too.
是的，我还拿了你的橡皮。
Accurate, don't you think? Fortunately, I wasn't wearing it at the time.
真够准的，是不是？幸亏我当时没戴帽子。