tubbish

例句：

1. 1. The children were playing in the sandbox, and their parents were watching from a distance.
   孩子们在沙箱里玩耍，他们的父母从远处观看。
2. 2. The dog was barking loudly, and the owner was trying to quiet it down.
   狗大声吠叫，主人试图让它安静下来。
3. 3. The teacher was explaining the math problem to the students, and they were all listening carefully.
   老师正在向学生们解释数学问题，他们都很认真地听。