每日一句是

You must learn from the mistakes of others.
You can't possibly live long enough to make them all yourself.
--Sam Levenson
你必须从别人的错误中吸取教训，(因为)人生苦短，你不可能一一去犯这些错。
--萨姆-莱文森(美国幽默作家)

Notes:
1.learn
vt.& vi. 学习，学会；习得；得知；记住
vt. 记住；学习；得知；认识到
vi. 学习；获知
常见搭配：
I am [have] yet to learn.
我还不大清楚。
In doing we learn.
[谚]边干边学; 在 实践中学习。
Never too old to learn.
[谚]活到老, 学到老。
Soon learnt, soon forgotten.
[谚]学得快, 忘得快。
We regret to learn that .
(函电等习用语)惊悉
learn off
记牢, 背熟

2.enough
adv. 足够地，充足地；十分地
adj. 充足的；足够的
n. 充分，足够；满足
int 够了
常见搭配：
be good enough to do sth.
劳驾, 务请做某事(Be good [kind] enough to reply early. 请早日赐复)
be old enough to
已经是...年龄了
cannot... enough
无论怎样...都不够(I cannot thank you enough. 感恩不尽。)
curiously/odd/strangely enough
[用作插入语]说也奇怪, 最奇怪的是
have enough of
(对某人或某事)感到厌烦
have enough to do
好容易才, 很吃力
more than enough
太多, 够多, 十二分
not enough to swear by
仅仅一点点
sure enough
果然不错, 确实
well enough
还不错, 还可以; 相当, 很, 极
You know well enough.
[口]你明明知道; 你心里明白; 你很懂得。
enough and to spare
足够, 绰绰有余
E-is as good as a feast.
[谚]足食犹如筵席。(不过分就好; 知足常乐。)
E-is as good as a feast.
[谚]足食犹如筵席。(不过分就好; 知足常乐。)
enough to go on with
暂且够了, 目前足以应付