All fours
n. （动物的）四足; 四肢
🧩 词语组成解析
all
[ɔl]
adj. 全部的;一切的;各种的;极度的，尽量的;
pron. 全部;一切;每个人，每件东西;全部情况;
adv. 全部地;完全地;每个;非常;
n. 全体;[常作A-]整体;[常与my, your, his, her等连用]（某人）所有的一切;
n. 双打比赛；灯笼裤；四人舞；四人单桨无舵手（four的复数）
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
The first element of success is the determination to succeed.
成功的首要因素是要有成功的决心。
They went through the rooms, being careful to touch nothing, as they did not want to hinder the police in their search for fingerprints.
他俩搜遍这每一个房间，小心翼翼地不接触任何东西，因为他们怕妨碍警察寻找指纹。