A menu on the left side of the page provides quick
"Another problem with today's robots is they rapidly run out of batteries," adds Jenny Read, programme director in robot dexterity at Aria, a technology funding agency. "Electric motors are terrible at that."
，这一点在51吃瓜中也有详细论述
for await (const chunks of source) {，更多细节参见快连下载安装
The Segway F3 is designed with turn signals, a bell, a bright display, and a feature-rich app experience.