Upconversion
上变频; 上转换; 升频转换
🗣️ 情景例句
Oh, you really had a bad day.
哦 你们真的没玩好。
Whom will you speak to?
你将和谁说话？
They had just had enough time to swim out of danger when the boat again completed a circle.
他们刚刚来得及游出危险区，快艇就又转完了一圈。