| 碳 |
tàn suān nà | soda / sodium carbonate (chemistry) |
| 碳 |
tàn | carbon (chemistry) |
| 碳 |
tàn suān | carbonic acid |
| 酸 |
suān | sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid |
| 钠 |
nà | sodium (chemistry) |