【重点讲解】

foul

adj. 犯规的；邪恶的；污秽的；淤塞的

vt.犯规；弄脏；淤塞；缠住，妨害

vi. 犯规；腐烂；缠结

n. 犯规；缠绕

adv. 违反规则地，不正当地

The teachers had to deal with her foul language, disruptive behaviour, and low academic performance.

老师们不得不应付她粗俗的语言、捣乱的行为和不良的学业成绩。

Collins was in a foul mood even before the interviews began.

柯林斯甚至在面试开始之前就处于暴躁情绪。

No amount of foul weather, whether hail, wind, rain or snow, seems to deter them.

不管天气有多恶劣，哪怕是冰雹、大风、雨还是雪，似乎都阻止不了他们。

sheer

adj. 绝对的；透明的；峻峭的

adv. 完全；陡峭地

vi. 偏航

vt.使偏航；使急转向

n. 偏航；透明薄织物

His music is sheer delight.

他的音乐是纯粹的快乐。

Sheer chance quite often plays an important part in sparking off an idea.

纯粹的运气常常在激发思想方面起着重要的作用。

There was a sheer drop just outside my window.

就在我的窗外有一个陡坡。

watch your step.

小心谨慎，留神脚下。