Forward and backward deduction
[计] 前后推导
🧩 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
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
deduction
[dɪ'dʌkʃən]
n. 推演，推理，演绎;（推理所得出的）结论;扣除，减除;扣除的量;
duc,duct =lead,bring,表示”引导,带来”#词根助记：de向下+duce引→向下引→推论
🗣️ 情景例句
In North America when people meet each other for the first time.
在北美，当人们第一次彼此见面时。
Where there is life, there is hope.
生命不息，希望常在。
Some of them were as big as marbles.
有的钻石像玻璃球那么大。