Everybody ESLEpisode 369In this episode, I want to teach you an interesting and strange expression. The expression is on all fours. That’s on O-N. all A-L-L, fours F-O-U-R-S. on all fours. I think the meaning of this expression is very simple, very easy to understand. But I also think it’s very strange. The meaning of on all fours is on, or walking on your hands and knees. Imagine somebody down on the ground with their knees on the ground, and their hands on the ground in fall off them. If they are that position, they are on all fours, and I think it is a very strange expression. Because we don’t usually talk about your hands and your knees as fours. We don’t really talk about anything as fours. For one thing, why don’t we say on all four. That would still be strange, but at least it would make a little bit more sense. On all fours. It’s just the kind of expression that seems very strange when you stopped to think about on all fours. Well, anyway, here is an example of situation while you could use the phrase on all fours. When I walked into my friend’s apartment, I saw him searching for his keys on all fours. When I walked into my friend’s apartment, I saw him searching for his keys on all fours. In another words, he is looking for his keys on the floor. Maybe he is on all fours, on his knees and his hands, and he is trying to look under furniture, he is trying to look under chairs, look under the sofa, and under the table. He is on all fours, while he is looing for his keys. You’ll also hear people say down on all fours. And so we say things like my friend was down on all fours searching for his keys. He was down on all fours. On all fours, down on all fours, they mean the same thing. They mean in the position with your knees and your hands on the floor or on the ground. And Rằng 's trên tất cả các fours, một vẻ lạ, sự tò mò và các expression useful mà tôi nghĩ bạn nên biết.(31min)