be cordon off布置警戒线戒严
be ill off贫困;不幸;翻译
A be Ark off心理卫生学者阿可夫
be kept off保持关闭的状态
to be well off富裕的
Will be put off将被推迟
be taken off allocation取消配给
be away off搞错了
be dusted off拂去灰尘