Learn Chinese Smarter
yùn zhuǎn shí chén mèn de xiǎng shēng ràng rén jué de xīn fú qì zào
运转时沉闷的响声让人觉得心浮气躁。
The boring beep of its operation makes people feel unsettled.
For more features to help you learn Chinese, please download the HanBook APP.