本 Total English - 上級 - ユニット 1 - レッスン 2

a suggestion or thought about something that we could do

アイデア, 提案

a piece of evidence that leads someone toward the solution of a crime or problem

手がかり, ヒント

from one's memory, without spending time to carefully consider or think

without any preparation or prior thought

軽い気持ちで, 何の前触れもなく

to know about somebody or something because one has received information or news about them

聞いたことがある, 知っている

to be well-informed about or completely familiar with something

feeling confident about something being correct or true

確信している, 確かな

(of a person) having no doubt about something

確信している, 自信のある

by relying only on one's memory

to have very good knowledge or understanding about someone or something

to a degree that is very little and close to nothing

difficult to see, hear, smell, etc.

かすかな, 微弱な

feeling completely sure about something and showing that you believe it

確信している, 確実な