Upgrader
质量改善装置；升级程序
✅ 同义词
🗣️ 情景例句
Sometimes it sounds a little stubbon.
有时候，这显得有点固执。
Pain past is pleasure.
过去的痛苦即是快乐。
After years of conditioning, most of us have developed an unshakable faith in railway timetables.
经过多年的适应，大多数人对火车时刻表产生了一种不可动摇的信念。