be covered with 被…所覆盖,覆盖着,盖满…The grass was covered with frost in the early morning.The tree was covered with beautiful pink blossom.be covered by ...:由...承担/负担/支付;被...掩护/报道/监视...那请问有没有be covered in这个词组呢？be covered in 是用……填满，表动作