Wipe off these scribblings from the blackboard.是什么意思？

Wipe off these scribblings from the blackboard.

把黑板上的涂鸦擦掉.

wipe

vt. 擦，拭，擦去，消除，涂上，刷卡；n. 擦，拭，抹布，毛巾，用力打；vi. 擦，抹，打，揍；

例句
He used his sleeve to wipe the condensation off the glass.
他用袖子擦掉玻璃上凝结的水珠。

off

prep. 从…落下，离开，从…去掉，下班；adv. 离开，距，离，被取消，下班；adj. 不新鲜的，不能接受，不礼

例句
He eased his foot off the accelerator.
他松开了油门。

these

adj. 这些的；pron. 这些；

例句
There's lots of money about these days for schemes like this.
近来这类计划资金充足。

scribblings

adj. 这些的；pron. 这些；

例句
Are we expected to believe those scribblings are art? This piece of trash was a waste of space.
我们难道真要把那些乱涂乱画当作艺术吗？这种垃圾留着都占地方。

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

blackboard

n. 黑板；

例句
There was a blackboard with seven names chalked on it.
黑板上用粉笔写着7个人名。