Upgrader
质量改善装置；升级程序
✅ 同义词
🗣️ 情景例句
Why are you back so early?
你们怎么这么早回来？
Accidents will happen.
天有不测风云。
the figure becomes no more than an exact and matter-of-fact observation.
杜威的比喻就是他实事求是观察得来的形象化的说法。