Double-tracer technique
[化] 双指示剂法
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
It's too noisy for some older people like Nat.
它对于像Nat这样的老人来说太吵了。
He can't dress himself yet because he's too young.
他还不能给他自己穿衣服因为他是太年轻的。
Yes. And then after supper some jazz or pop so that people can dance.
好的。晚餐后，来些爵士乐或流行歌曲 ，好让大家都能跳跳舞。