```
Zhang Zhenlin looked displeased, "Whether he can achieve results depends on his own conditions, whether he works hard. All we can do is to teach him sincerely, seriously impart our skills, not take advantage of him being an adult and fool him."
Seeing her father angry, Zhang Qianqian quickly lowered her head, not daring to argue.
Zhang Zhenlin continued, "When he comes again, you either teach him seriously, or give back the thousand yuan tuition."
"Oh!" Zhang Qianqian reluctantly responded.
------
Evening.
The weather changed drastically, a dark cloud rolled in from the north, and the wind carried a hint of coolness, clearly indicating a storm was imminent.
Xu Wendong and Ding Yao finished their free clinic, and as they were packing up, Xu Wendong received a call from his cousin, "Wendong, I saw the weather forecast. There will be a thunderstorm tonight. Your sister-in-law is afraid of thunder; you should get back and accompany her soon."
