突然的暴雨阻碍了我们完成户外活动的计划。

The sudden rainstorm ___thwarted our plan to finish the outdoor activity.

交通堵塞阻碍了我们按时到达会议现场。

The traffic jam ___thwarted our attempt to arrive at the meeting on time.

她的及时干预阻止了一场可能的争吵。

Her timely intervention ___thwarted a potential argument.