本来

In a sentence

• 本来我想去公园，但突然下雨了。

  Originally, I planned to go to the park, but it suddenly started raining.

  Here, '本来' indicates the initial intention or plan before the unforeseen event.

• 这个活动本来就很受欢迎。

  This event was popular to begin with.

  In this sentence, '本来' signifies the initial state or inherent characteristic.

• 本来这是一个简单的问题，但后来变得复杂了。

  This was originally a simple problem, but it later became complex.

  '本来' here expresses the original situation before the change occurred.