Treadstone
n. 踏腳石（喻被人利用的計劃、行動等）; 踏腳石 （語見電影<碟影重重>）
??? 情景例句
And his name and the date are on the bottom.
他的名字和日期都在下面。
I wrote to my uncle last night.I couldn't put it off any longer.
我昨晚給我的叔叔寫了信.我不能再推遲寄信了。
And if, with the decay of vitality, weariness increases,
再者，隨著精力的衰退，老年人的疲憊感會增長，