brittle, fragile, frail, crisp, invalid
这一组形容词都有弱的意思。
brittle a.易碎的,易损坏的,通常是指坚硬的东西。
The bones of elderly people become brittle and easily broken.老年人的骨头变得脆弱,很容易骨折。
fragile a.常常修饰使用时必须小心才不会破碎的东西,也引申为体弱的,虚弱的。
He s feeling a bit fragile after last nights party.他参加了昨晚的聚会以后,现在感觉有些虚弱。
frail a. 体弱的,虚弱的,也可以指东西易碎的。
His mother has grown old and frail.他母亲已经年老体弱。
crisp a.指食品的松脆;清新的,爽快的;活跃的,有生气的,干净利落的。
crisp biscuit松脆的饼干
The student gave a clear, crisp answer to the teachers question.学生干净利落地回答了老师的问题。
invalid a.不正确的,缺乏证据的;无效的,作废的。作名词时,表示病弱者,伤残者,久病者。
Your ideas about the first humans are interesting but invalid.你关于最早的人类的观点很有意思但是缺乏证据。
A bad car accident made him an invalid.一次严重的车祸使他变成了残疾。
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