Sparsity
n. 稀疏, 稀少, 贫乏
🗣️ 情景例句
Reading childern's literature is an excellent way for the beginning English speaker to improve.
对于刚刚开始学说英语的人，阅读儿童文学读物是个不错的方法。
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
That's a good idea! Why not? Let's go.
好主意！为什么不呢？我们走吧。