Spend one's words
白费口舌
🧩 词语组成解析
spend
[spɛnd]
vt.& vi. 用钱，花钱;
vt. 花费;消耗;花（时间）;度过;
n. （为某目的或某段时间内的）花销，花费，开销;
s(dis-=apart)+pend(hang)→花费；耗用
a. 人们的；自己的
words
[[wə:dz]]
n. 言语；话语；字（word的复数）
🗣️ 情景例句
Which subject were you best interested in?
你对哪一科最有兴趣？
No pains, no gains.
不劳则无获。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？