ink stick

基本解释

Lin: Yes. You need writing brush, paper, ink stone and ink stick. However, we often use ink instead of ink stick now.
对。你需要有毛笔，纸，砚台，还有墨块。但是现在我们都用墨汁，不用墨块了。
And we pour some water into it, and we rub the ink stick, and then we can get the liquid ink we are gonna use in painting and writing.
我们往砚台中倒一些水，在它上面磨墨，然后我们就可以得到用来写字作画的墨汁。
With this foundation in place, one then attends to posture: grinding the ink stick evenly, holding the brush neither too tightly nor too loosely.
然后要注意写字的姿势：磨墨应端端正正，握笔要不松不紧。