 | [ngõ ngách] |
|  | Nook and cranny. |
|  | Biết hết ngõ ngách một thành phố |
| To know one's ways about in a city. |
|  | (nghĩa bóng) Minute detail, smallest detail. |
|  | Biết ngõ ngách một vấn đề |
| To know a question in great detail. |
|  | by-street; dead end street, alley; (fig.) the ins and the outs |
|  | biết mọi ngóc ngách của vấn đề |
| know all the ins and outs of a problem |