be covered with例句：
1.
Any sharp corners, especially those facing you, should be covered with decorativephotos or green, leafy plants.
任何尖角的地方，尤其是对着你的，应该用
装饰的照片或绿色的大叶子植物盖上。
2.
One of the clichés of pair programming is that if you’re doing it right, your screenshould be covered with greasy finger-marks by the end of the day.
结对编程的特征之一就是，如果你正确地使用了这种方法，那么在一天结束的时候，屏幕上会满是油腻的手指印。
3.
Which is why more attention-grabbing techniques have caught on in thepromotion world, all of which can be covered with the term "guerilla advertising
这手闹大就是为什么越来越毕竖多的吸引眼球的技巧在世界弯枣的推广活动中流行开来，而所有这些都可以被冠以“非正规广告”的头衔。
be covered by例句：
1.
Because they are not part of Social Security, they cannot be covered by Medicare.
因为他们不是
社会保障的一份子，他们不能够被
医疗保险。
2.
Mr. Hazare and his supporters wanted all government officials, including the prime minister, to be covered by the Lokpal Bill.
哈扎尔及其支持者希望包括总理在内的全部政府官员都受到《公民检察法案》的制约。
3.
Under a plan advocated by some, much of that would be covered by the sale ofstate assets and the change in repayment terms for private debtholders.
根据部分人士倡导的一项计划，可以通过出售国有资产和变更私人国债持有者的偿付条款来筹集一部分资金。
be covered with 被…所覆升运袜码盖,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/吵好梁负担/支付;被...掩护/报道/监视/控制等等,表示抽象的概念, 后面接人, 机构, 或者组织.
These expenses are covered by the state.
1、be covered with 和be covered by 汉语意思相近，都可以翻译成“被/由、、、、、、覆盖”。但是，清帆二者结构本身名称不同。
2、be covered with 叫做系表结构，介词with 后面经常接事物，有时也可以接人。例如：
In cold winter,many parts in North China are covered with snow.
在寒冷的冬季，消正野中国北方很多地方都积雪覆盖。
As we all know, two-thirds of the earth's surface is covered with water.
众所周拿喊知，地球表面的三分之二都被水覆盖。
The square is covered with dancing people.
广场上到处都是跳舞的人。
3、be covered by 是被动语态结构，介词by后面跟动作的发出者，经常是人，也可以是事物。例如：
When he got there,he found that the road to the village had been covered by deep snow.
当他到那里时，他发现通往那个村庄的路已经被深深的积雪覆盖。
The pit was filled and covered by soeme students.
这个坑是被一些学生填上并覆盖的。