on all fours idiom
趴在地上，匍匐着
with your hands and knees on the ground
You'll have to get down on all fours to clean behind the toilet. 你得趴到地上才能擦洗到马桶后面的区域。
| 单词 | on all fours |
| 释义 | on all fours idiom 趴在地上，匍匐着 with your hands and knees on the ground You'll have to get down on all fours to clean behind the toilet. 你得趴到地上才能擦洗到马桶后面的区域。 |
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