1
- used to connect words of the same part of speech, clauses, or sentences, that are to be taken jointly用来连接同词性词、分句和句子 和, 与：
bread and butter
面包和黄油
red and black tiles
红色与黑色的瓷砖
they can read and write
他们能读和写
a hundred and fifty.
一百五十。
1.1
- used to connect two clauses when the second refers to something that happens after the first用来连接两个分句, 后一分句指后发生的事然后：
he turned round and walked out.
他转过身然后走了出去。
1.2
- used to connect two clauses, the second of which refers to something that results from the first［用来连接两个分句, 后一分句指前一分句引起的结果］ 因此, 结果：
do that once more and I'll skin you alive.
再那么做, 我要活剥你的皮。
1.3
- connecting two identical comparatives, to emphasize a progressive change［连接两个相同的比较级来强调一渐进的变化］ 越来越：
getting better and better.
变得越来越好。
1.4
- connecting two identical words, implying great duration or great extent连接两个相同的词, 暗示连续或程度 接连, 又：
I cried and cried.
我哭了又哭。
1.5
- used to connect two identical words to indicate that things of the same name or class have different qualities用来连接两个相同的词表示同一事物有不同性质 此外还有：
all human conduct is determined or caused - but there are causes and causes.
所有人类行为都是先决的或有原因的——但有这样那样的各种原因。
1.6
- used to connect two numbers to indicate that they are being added together用来连接两个数字表示相加 加：
six and four makes ten.
6加4等于10.
1.7
- archaic used to connect two numbers, implying succession〈古〉［用来连接两个数字, 含有连续之意］ 两个两个地：
a line of men marching two and two.
一列两个人并排行进的队伍。
2
- used to introduce an additional comment or interjection［用来引导补充说明或插入语］ 并且：
if it came to a choice - and this was the worst thing - she would turn her back on her parents.
如果要做出选择——这是最糟的事——她会背弃她父母的。
2.1
- used to introduce a question in connection with what someone else has just said［用来引导和某个人刚说的话有关的问题］ 那么, 接着：
'I found the letter in her bag.''And did you steam it open?'
“我在她包里发现了信。”“那你用蒸汽拆开信了？”
2.2
- (especially in broadcasting) used to introduce a statement about a new topic［尤在播音中引导和新话题有关的话］那么, 接着：
and now to the dessert.
现在来谈甜食。
3
- informal used after some verbs and before another verb to indicate intention, instead of 'to'〈非正式〉［用于某些动词后和另一动词前表示目的, 取代"to" ］以, 来：
I would try and do what he said.
我会力图照他说的去做。见后面 usage.
(AND)
1- Electronics a Boolean operator which gives the value one if and only if all the operands are one, and otherwise has a value of zero【电子】“与”（逻辑作用）。
1.1
- （亦作AND gate）a circuit which produces an output signal only when signals are received simultaneously through all input connections“与”门。
USAGE
短语
and/or
- either or both of two stated possibilities与（或）：
audio and/or video components.
音频与（或）视频元件。
词源
Old English and, ond, of Germanic origin; related to Dutch en and German und.