爷爷 / 喜欢 / 用 / 草书 / 写信 / 字迹 / 虽然 / 潦草 / 却 / 很 / 有 / 气势

爷爷喜欢用草书写信，字迹虽然潦草，却很有气势。

My grandfather likes writing letters in cursive script; although the handwriting is rough, it has great energy.