toilet training

例句：

1. 1. My daughter is learning to use the toilet at her age.
   我女儿正在学习在她这个年龄如何使用厕所。
2. 2. The family decided to start potty training their child.
   这家人决定开始训练他们的孩子上厕所。
3. 3. She was very excited about starting her child's potty training.
   她对于开始训练她的孩子上厕所感到非常兴奋。