1. He organized the things on the table again and again, and wiped the dirt off the lamp repeatedly. 2. Most (but not all) Chinese words can be both verbs and nouns. So both "experience" (verb) and "experience" (noun) can be translated as 经验 or 体验. 3. For the clothes that were a bit better looking/more stylish, when he tried them on, they were either too small or too short. 4. 茶 generally refers to tea (e.g., the liquid that one drinks), whereas 茶叶 refers specifically to "tea leaves."