Level 5 · word 9,337 of 20,000

therein

/ðeˈrɪn/ American
  • adv. 在其中, 在那里, 在那一点上
Definition
  • adv. in that place, document or matter, or at that point
Example
The rules are complicated, and therein lies the main problem.
规则很复杂,问题就出在这里。