VOA慢速英语:When a Cut Finger Is More Serious Than It Might Seem

all the time向来, 一向

例句：He's a business man all the time.
      他一向是做生意的。

2.Without treatment, a bad cut can lead to permanent damage.

Without表示条件

非真实条件句中的条件从句有时不表示出来，只暗含在短语或上下文中，这种句子叫做储蓄条件句。常见的有but,for ,without等引导的短语，以及or, or else, otherwise, but 等后面的分句。
例：But for your help we couldn’t have succeeded in the experiment.
如果没有你的帮助，我们的实验室是不会成功的。
例：We could have done better under more favourable conditions.
在更有利的条件下，我们能够做得更好些。

3.But how should a person know when a bleeding cut is serious enough to require medical attention?

enough的用法

A 在形容词之后使用：

He failed the exam because it wasn't easy enough.

他考虑不及格，因为题不够容易。（不说 enough easy）

B 在名词之前使用：

He didn' t buy the car because he didn't have enough money.

他没买那部车，因为他没有足够的钱。

C 可以用在 enough… for sb．/sth．和 enough… to do sth．结构之中：

She hasn't got enough money for a holiday.

她没有足够的钱去度假。

This dress isn't big enough for her.

这件衣服对她来说不够大。

She's not old enough to live alone.

她未到独自生活的年纪。

4.That requires a specialist to either file down the bone or reattach the fingertip.

file down将某物锉光滑, 锉小

例句：The door won't fit; you'll have to file it down.
      这门关不上, 你得把它锉一锉。