Pills are sometimes coated with sugar.是什么意思？

Pills are sometimes coated with sugar.

药丸有时包上一层糖衣.

pills

n. 药丸( pill的名词复数 )，药片，口服避孕药，讨厌

例句
My husband has to take several pills to counteract high blood pressure...
我丈夫不得不吃几片药来降压。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

sometimes

adv. 有时，间或，时

例句
I want to work at home on a Tuesday but as it turns out sometimes it's a Wednesday or a Thursday.
我想周二在家工作，但实际上有时却是周三或是周四。

coated

adj. 涂上一层的；

例句
The sea is coated with a film of raw sewage.
海面上漂浮着一层未经处理的污水。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

sugar

n. 食糖，一匙糖，宝贝儿，亲爱的；vt. 在…加糖，给…裹上（糖衣或类糖物）；vi. 形成糖；int. （做了蠢事或出现差错时表示懊恼，用作 shit 的委婉语）哎呀，真是的；

例句
During rationing we had a sugar allocation.
定量配给时期，糖是限量配给的。