Ridel-walker test
[机] 里迪尔-沃克试验
🧩 词语组成解析
walker
['wɔ:kə]
n. 散步的人;（帮助小孩学走路用的）学步车;助步车;助行架;
🗣️ 情景例句
It's midnight.
都午夜了。
Deliberate in counsel, prompt in action.
考虑要仔细，行动要迅速。
She heard the front door open and heavy footsteps in the hall.
她听见前门被打开，走廊里响起重重的脚步声。