teargas

例句：

1. 1.She was so moved by the movie that she shed tears of joy.
   她被这部电影感动得流下了喜悦的泪水。
2. 2. The doctor advised her to take a break and let her tears flow.
   医生建议她休息一下，让泪水流出来。
3. 3. Tears of sorrow filled his eyes as he watched the sunset.
   他看着日落时，眼里充满了悲伤的泪水。