我们使用主成分分析来可视化高维数据。

We applied ___PCA to visualize high-dimensional data.

我的祖母有一位个人护理助理，每天帮她洗漱和准备餐食。

My grandmother has a ___PCA who helps her with bathing and meal preparation every day.

这个外置键盘是我最常用的便携电脑配件之一。

This external keyboard is one of my most used ___PC accessories.