remain的形容词是什么？

　　例句：

　　They remain unshaken in their loyalty.

　　他们仍然忠贞不渝。

　　Details of the proposals remain secret.

　　提议的细节仍不得而知。

　　A pilot must remain vigilant at all times.

　　飞行员必须随时保持警惕。

　　The remaining trash, which is mostly unrecyclable, is discarded.

　　剩下的垃圾大部分是不可回收的`，就被丢弃了。

　　I suppose in the time remaining, and we'd better ask what language is.

　　我想在剩下的时间里，我们最好问问什么是语言。

　　Fill in the remaining one quarter with lean meat or chicken, fish or eggs.

　　剩下的四分之一用瘦肉或鸡肉、鱼或鸡蛋填满。