Discounting
vt. 折现；贴现；折扣；计算现值（discount的现在分词）
🗣️ 情景例句
His house is on the left.
他的房子就在左边。
Through obedience learn to command.
只有学会听命于人，方能学会向人发号施令。
He asked very politely, Excuse me, have you got any books about the moon and the stars?
“请问，你有关于月亮和星星的书吗？”