Knock indicator
[化] 爆震器
🧩 词语组成解析
knock
[nɑk]
n. 短促的敲打（声）;爆震声;敲击声;敲门（或窗等）声;
vi. 猛烈敲击;与某物相撞;撞到了桌子;
vt. （心）怦怦跳;把…撞击成（某种状态）;批评;
indicator
['ɪndɪketɚ]
n. 指示器;[化]指示剂;指示者;
🗣️ 情景例句
No, it isn't. But you can transfer from this bus to bus number 24.
不，不经过。但是你可以搭这班车转乘24路。
The exception proves the rule.
例外能反证规律。
The story of a poor family that acquired fame and fortune overnight, dramatically illustrates the power of the press.
下面这户穷人一夜之间出名发财的故事戏剧性地说明了新闻报道威力。