Definition: often affected by something, especially something unpleasant Level: C1
列车时刻表可能不经通知而更改。
Train schedules are ___subject ___to change without notice.
最终合同需经董事会批准方可生效。
The final contract is ___subject ___to approval by the board.
我们的徒步计划受天气条件影响。
Our hiking plans are ___subject ___to the weather conditions.
