休 / 体: how to tell them apart
休 is a person (亻) leaning on a tree (木) to rest (休息). 体 has 本 on the right (身体, 体育).
休 xiū — to rest
休
| 休息 | xiū xi | rest | 3A lesson 7 |
体 tǐ — body
体
| 身体 | shēn tǐ | body | 1B lesson 12 | |
| 体育 | tǐ yù | physical education; sports | 4A lesson 5 | |
| 体育精神 | tǐ yù jīng shén | sportsmanship | 4B lesson 11 | |
| 侧着身体 | cè zhe shēn tǐ | lying on one's side | 4B lesson 16 |