1. brushstroke; stroke (in painting or calligraphy)
2. (bound form) style of writing; literary manner; technique of brushwork
3. (classifier) stroke of a Chinese character
4. (classifier) sum of money; financial transaction; piece of business
5. (literary) to write (with a brush or pen)

classifiers: 支, 枝

1. (adverbial expression indicating that the attention of the subject of the verb is focused on what they are doing, not distracted by anything else)
2. just ...ing (and nothing else)