be bound up in ...

• 热心于 ...； 忙于 ...

be bound up in ...的用法和样例：

例句

1. Xiao Chen is zealous in basketball.
   小陈热心于篮球。
2. My father loved to build up Montaigne, where he was born.
   我先父热心于建设他的出生地蒙田。
3. She was tied up with the housework all day.
   她整天忙于家务。
4. He is bound up in his work these days.
   这些天他在忙于自己的工作。