Flutter echo
[电] 摆动回音
🧩 词语组成解析
flutter
['flʌtɚ]
vi. 飘动;鼓翼;
vt.& vi. 振翼，拍翅膀;烦扰，坐立不安;（旗帜）飘扬;
n. 紧张，激动不安;颤振;飘扬;（身体部分的）病态阵跳;
flutt+er(动词后缀)→摆动；鼓翼
echo
['ɛko]
n. 回声，共鸣;（言语、作风、思想等的）重复;重复者;[无线电]回波;
vt. 重复，效仿;随声附和;类似;发射（声音等）;
vi. 被重复;产生回响;充满回声;
echo-, ech- 表示”声音 ,噪音”;特备是”回声”;”重复,模仿”
🗣️ 情景例句
Just two days.
只要两天。
The master always exacts quality work from his students.
老师常常要求学生们认真踏实的完成功课。
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。