| 1 | I can recite many Tang poems by heart. | |
| 2 | She has the whole poem off (by heart) already. | |
| 3 | Within 3 days, you need to know them like the back of your hand. | |
| 4 | You can be charming, and know your subject thoroughly. | |
| 5 | Sam is really a walking dictionary. He looks as if he knows the whole dictionary by heart. |