express laboratory

例句：

1. 1. She expressed her gratitude with a warm smile.
   她用温暖的微笑表达了她的感激之情。
2. 2. The manager expressed his disappointment in the results.
   经理对结果表示失望。
3. 3.The artist expressed his feelings through his painting.
   艺术家通过他的画作表达了他的感情。