🧩 词语组成解析
fifty
['fɪfti]
n. 五十个人;五十岁;五十年代;编号为五十的东西;
num. 五十;五十个;
adj. 五十的;五十个的;许多的;
cent
[sent]
n. 分;一分钱的硬币;零钱;（作单位的）百;
piece
[pi:s]
n. 块，片，段;部分，部件;文章，音乐作品;
vt. 修补;连接，接上;
🗣️ 情景例句
With your background and experience,
依你的背景和经验，
Mmm!
嘿嘿！
If it is not a question of resting the body, then perhaps it is the brain that needs resting? This might be a plausible hypothesis were it not for two factors.
如果睡眠的功能不是在于使身体得到休息，那么也许是让大脑得以休息？若不是下面两点，这种假使似乎是有道理的。