Upgrader
质量改善装置；升级程序
✅ 同义词
🗣️ 情景例句
He ventured to speak to her.
他鼓起勇气向她说话。
Is there a public phone near here?
这附近有公用电话吗？
I'm sure you'll find that we are very competitive now.
我敢说你们一定会发现，我们现在的价钱是不怕别人竞争的。