Downgraded
v. 使降低, 使降级( downgrade的过去式和过去分词 )
✅ 同义词
🗣️ 情景例句
Hi.
嗨。
Please call me before you come.
你来之前请打电话。
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理过程中，常常使用氧气切割和焊接金属板或金属管。