remain是一个动词，意为“保持、仍然是、留下”。在英语中，remain通常要与其他词语搭配使用，才能更加准确地表达意思。

一般来说，remain可以搭配以下几种词语：

1. remain unchanged：意为“保持不变”。例如：“Despite the passing of time, the beauty of the ancient temple remains unchanged.”

2. remain silent：意为“保持沉默”。例如：“The accused remained silent during the entire trial.”

3. remain seated：意为“保持坐着”。例如：“Please remain seated until the plane has come to a complete stop.”

4. remain calm：意为“保持冷静”。例如：“In the face of danger, it is important to remain calm and think rationally.”

5. remain hopeful：意为“保持希望”。例如：“Despite the setbacks, we must remain hopeful and work towards achieving our goals.”

总之，remain需要根据语境和表达的意思来选择合适的搭配词语，以达到更加准确和清晰的表达效果。