attrib.
1
- at an equal distance from the extremities of something; central中部的, 中间的, 中央的, 当中的：
the early and middle part of life
生命的早期和中期
middle and eastern Europe.
中欧和东欧。
1.1
- (of a member of a group, series, or sequence) so placed as to have the same number of members on each side（群、系列、序列中）居中的, 中间的：
the woman was in her middle forties.
那妇女四十五六岁。
1.2
- intermediate in rank, quality, or ability（职位, 品质, 能力）中级的, 中等的：
there is a dearth of talent at middle level.
缺乏中级人才。
1.3
- (of a language) of the period between the old and modern forms（语言）中古的, 介于现代与古代之间的：
Middle High German.
中古高地德语。
2
- Grammar denoting a voice of verbs in some languages, such as Greek, which expresses reciprocal or reflexive action【语法】中动态的, 中间反身态的。
2.1
- denoting a transitive verb in English which does not have an equivalent passive, e.g. had in he had an idea（英语及物动词）无被动态的。
1
- usu. in sing. the point or position at an equal distance from the sides, edges, or ends of something中部, 中间, 中央, 当中：
she stood alone in the middle of the street.
她独自一人站在街中央。
1.1
- the point at or around the centre of a process or activity, period of time, etc.（过程、活动、一段时间）中间, 当中：
we were married in the middle of December.
我们是在12月中旬结婚的。
1.2
- informal a person's waist or waist and stomach〈非正式〉腰部; 身体中部：
he had a towel round his middle.
他在腰间裹了一条浴巾。
2
- Grammar the form or voice of a verb expressing reflexive or reciprocal action【语法】中动态, 中间反身态。
3
- short for MIDDLE TERM.MIDDLE TERM的简称。
with obj.
- (in Cricket, tennis, etc.) strike (the ball) with the middle of the bat, racket, or club（板球、网球等中）用球棒（或拍）中部击（球）。
短语
down the middle
- divided or dividing something equally into two parts从中间平分的。
in the middle of
1
- engaged in or in the process of doing something正忙于; 在做…的中途。
1.1
- involved in something, typically something unpleasant or dangerous介入（尤指令人不快或危险的事）：
he was caught in the middle of the emotional triangle.
他陷于三角情感中。
the middle of nowhere
- informal a place that is very remote and isolated〈非正式〉茫茫蛮荒之地。
steer（或take） a middle course
- adopt a policy which avoids extremes取中庸之道, 不走极端。
词源
Old English middel, of West Germanic origin; related to Dutch middel and German Mittel, also to MID.