| 所 |
suǒ cháng | what one is good at |
| 所 |
suǒ zhǎng | head of an institute etc |
| 所 |
suǒ | actually / place / classifier for houses, small buildings, institutions etc / that which / particle introducing a relative clause or passive / CL:个 |
| 长 |
cháng | length / long / forever / always / constantly |
| 长 |
zhǎng | chief / head / elder / to grow / to develop / to increase / to enhance |