keep under

• • (使)留在下面，放在…下面：

    He dived into the water and kept under for a while.

    他跳入水中，在水里呆了一会儿。

    Keep your shoes under the bed, please.

    请把你的鞋放在床下。

  • 控制，抑制；约束：

    The fireman managed to keep the fire under.

    救火员设法将大火控制住了。

  • 压制，压迫，统治：

    The invaders managed to keep the local people under.

    入侵者设法压制当地人民。

  • 使处于麻醉状态：

    The operation began when the patient was kept under with morphine.

    病人注射吗啡后处于麻醉状态，于是手术开始了。