Backward counter
[计] 减法计数器, 反向计数器
🧩 词语组成解析
counter
['kaʊntɚ]
n. 柜台;对立面;计数器;（某些棋盘游戏的）筹码;
adj. 相反的;
vt. 反击，还击;反向移动，对着干;反驳，回答;
vi. 逆向移动，对着干;反驳;
adv. 反方向地;背道而驰地;
count(to count)+er→筹码；柜台；计算器
🗣️ 情景例句
If you have something you want to talk about,
假如你有什么事情要谈，
The spacecraft is scheduled to arrive at Saturn next year.
太空船预定明年到达土星。
The days get longer and the nights get shorter.
白天变长了，黑夜变短了。