remain in

• • 呆在屋里，不外出：

    You have to remain in till the weather improves.

    你必须呆在屋里，等天气好了再出去。

  • 保持处于(某种状态)：

    The typewriter remained in good condition after having been used for ten years or so.

    这台打字机用了大约十年了，还这么好。