I polished for all I was worth. The trouble is that my stock of low-grade gems was surprisingly low.
With your ability it should be a doddle, but please don't be prideful of that but first apply yourself dilligently with everyone in your class.
Brush your teeth every day.
I brush my teeth twice a day.
My father polished his car till it shone.
There are so many fine scratches and dents on its surface, it's no use polishing it.
She said that she brushes her teeth every morning.
She shined the knives and forks for Mother.
She had her shoes shined.
She studied abroad in order to brush up her English.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.