| 笃 |
dǔ zhuān | with undivided attention |
| 笃 |
dǔ | serious (illness) / sincere / true |
| 专 |
zhuān | for a particular person, occasion, purpose / focused on one thing / special / expert / particular (to sth) / concentrated / specialized |
| 专 |
zhuān | variant of 专 |