| 1 | I have already opened this letter. | |
| 2 | You can pull the gearbox apart in case of an emergency. | |
| 3 | We need to dismantle and pack the furniture before moving. | |
| 4 | He can quickly disassemble, repair, and reassemble this motorcycle by himself. | |
| 5 | Children are always curious about toys and just want to take them apart to see what's inside. |