1.silk的意思是“丝,绸”,指用蚕丝或人造丝制成的光滑、柔软的纺织品的总称,是不可数名词。
2.silk表示不同种类的丝绸时可用于复数形式,作主语时其谓语动词也应是复数形式。
3.silk可用在其他名词前作定语。

make a silk purse out of a sow's ear
无米之炊 make sth good out of bad〔poor〕 quality materials
I was hoping I could repair my old car and make it roadworthy, but it turns out you can't make a silk purse out of a sow's ear.我原来希望我能修好那辆旧车,使其能在公路上行驶的,但结果是巧妇难为无米之炊。

We import raw silk.我们进口生丝。
He found that piles of silks, piles of silver and gold piled up to the roof.他看到成堆的丝绸、金银堆到了屋顶。
Can you match me the silk?你能找一块和这相配的绸子吗?
The evening dress is made out of pure silk.这件睡衣是用真丝做的。
You could back the dress with silk.你可以给这件衣服加丝绸衬里。
People usually connect China with silk and good food.人们一提到中国,便往往联想到丝绸和美食。
He is in the silk trade.他做丝绸生意。
She banded the birthday gift with a silk strip.她用一根丝带扎好了生日礼物。
Braving the snow they performed red silk dance for us.他们不顾下雪给我们表演了红绸舞。
Angela is modelling an attractive blue silk dress.安吉拉做时装模特儿向顾客展示一种漂亮的蓝色丝绸服装。
Silks and coloured threads are included.包括各种丝绸和彩线。
She is dressed in silks.她身着丝绸服装。

［词源］  ＜古英语slike ＜古英语seoluc(丝)