Backward-forward counter
[计] 双向计数器; 正反向计算器
🧩 词语组成解析
forward
['fɔrwɚd]
adv. 前进地;向前;至将来;提前地;
adj. 向前方的;迅速的;（社会、政治）进步的;早熟的;
vt. 促进，助长;（按新地址）转寄;发送;
n. 前锋;
for前 + ward向... → ad.向前；今后，往后\r\nv.转发
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
sacrifices have to be made by one partner from time to time.
总要有一方必须不时做些牺牲。
It is one thing to speak much and another to speak pertinently.
话讲得多是一回事，讲得恰当是另一回事。
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？