这幅画保留了作者最原始的情感，非常打动人。

Zhè fú huà bǎoliú le zuòzhě zuì yuánshǐ de qínggǎn, fēicháng dǎdòng rén.

This painting preserves the artist’s most raw emotions and is very touching.

他的想法还停留在比较原始的阶段，需要进一步完善。

Tā de xiǎngfǎ hái tíngliú zài bǐjiào yuánshǐ de jiēduàn, xūyào jìnyíbù wánshàn.

His idea is still at a rather rudimentary stage and needs further improvement.

考古学家在这里发现了原始人使用过的石器。

Kǎogǔxuéjiā zài zhèlǐ fāxiàn le yuánshǐrén shǐyòng guo de shíqì.

Archaeologists discovered stone tools used by primitive humans here.