tunnel tun channel 水 波

tun [tʌn]
(old-fashioned) a large round wooden container for beer, wine, etc
n. 大酒桶；发酵桶
vt. 把酒装入大酒桶

tunnel ['tʌnəl]
a long passage under or through the earth, especially one made by people:
to dig a tunnel
n. 隧道；坑道；洞穴通道
v 挖；在…打开通道；在…挖掘隧道
过去式tunneled或-nelled 过去分词tunneled或-nelled 现在分词tunneling或-nelling

例句
The workers are tunneling the hill.
工人们在凿山开隧道。
A mole tunneled a hole under the wall.
鼹鼠在墙脚下面钻了一个洞。
The workers were tunnelling through solid rock.
工人们正在坚石中挖掘一条通道。

difficult dif=dis 表否定 ficul=facil facilitate

facile ['fæsail]
produced without effort or careful thought
describes a remark or theory which is too simple and has not been thought about enough:
(formal) obtained too easily and having little value
adj.易做到的；容易达到的（因而不受重视的）；（指演说或写作）轻易完成但肤浅或质量差的

facilitate [fə'siliteit]
to make possible or easier
vt.使容易；促进；帮助

例句
Modern inventions facilitate housework.
现代的许多发明使家务简单多了。
Friendly contacts between different peoples facilitate the cultural and economic interchange.
各国人民的友好接触促进文化和经济交流 。

facility[fə'siliti]
a special feature of a machine, service, etc. that makes it possible to do sth extra:
buildings, services, equipment, etc. that are provided for a particular purpose:
a natural ability to learn or do sth easily
n. 能够或易於做某事的环境﹑ 设备等；容易学好或做好事物的能力；容易；灵巧
(供特定用途的)场所

例句
He has great facility in learning languages.
他很有学习语言的才能。
She had no cooking facilities in the room.
她房间里没有烧煮设备。
The offender was sent to a correctional facility.
罪犯被送到教养院。

绯闻女孩第1季第4集

It's a facility for the disturbed or addicted.
The question is, what do you do now?
这个机构是治疗有精神疾病和吸毒成瘾的人。
问题是，你现在想怎么做？