Totaliser
n. 加法求和装置；加法器；累加器
🗣️ 情景例句
He's the best pediatrician in Westchester.
他是全Westchester最好的小儿科医师。
Whom will you invite to the meeting?
你将邀请谁参加会议？
Now move the hand to and fro and around but not up and down.
然后把手前后左右以及旋转摆动，但不要上下摆动。