后面的英文代号

上下左右前后Before and after the up and down or so双语例句1.我认为那是个明显的优势——上下左右前后自由移动，甚至开出路外。I think that's a clear advantage — just sort of being able to kind of move over and around and up and down and get out of the way. bbs.zxxk.com2.研究者们认为，这些纹路显示了这种鸭嘴龙的牙齿运动很复杂，包括了上下、左右、前后的运动。The researchers say the scratches reveal that the movements of hadrosaur teeth were complex and involved up and down, sideways and front-to-back motion. article.yeeyan.org3.直升机和固定翼飞机相比，直升飞机的飞行更加灵活，直升机是六自由度的，也就是说直升机可以上下前后左右飞，直升机还能悬停。Helicopters and fixed-wing aircraft, helicopters flying more flexible, helicopters are six degrees of freedom, that is to say around a helicopter can fly up and down, the helicopter can hover.

n. 名词 v. 动词 pron. 代词 adj. 形容词 adv. 副词 num.数词 art. 冠词 prep. 介词 conj. 连词 interj. 感叹词 英语词性缩写 prep = 介系词；前置词，preposition的缩写 pron = 代名词，pronoun的缩写 n = 名词，noun的缩写 v = 动词，兼指及物动词和不及物动词，verb的缩写 conj = 连接词 ，conjunction的缩写 s = 主词 sc = 主词补语 o = 受词 oc = 受词补语 vi = 不及物动词，intransitive verb的缩写 vt = 及物动词，transitive verb的缩写 aux.v = 助动词 ，auxiliary的缩写 adj = 形容词，adjective的缩写 adv = 副词，adverb的缩写 art = 冠词，article的缩写 num = 数词，numeral的缩写 int = 感叹词，interjection的缩写 u = 不可数名词，uncountable noun的缩写 c = 可数名词，countable noun的缩写 pl = 复数，plural的缩写 语气词 int. 缩写词 abbr. abbr abbreviation(略)略语 adj, adjjadjective(s)(形)形容词 adv, advvadverb(s)(副)副词 adv partadverbial particle(副接)副词接语 aux auxiliary(助)助动词 cn countable noun(可数)可数名词 conj conjunction(连)连接 def art definite article(定冠)定冠词 egfor example(例如)例如 esp especially(尤指)尤指 etc and the others(等)等等 ie which is to say(意即)意即 indef art indefinite article(不定冠词)不定冠词 inf infinitive(不定词)不定词 int interjection(感)感叹词 n noun(s) (名)名词 neg negative(ly)(否定)否定的(地) part adj participial adjective(分形)分词形容词 pers person(人称)人称 pers pron personal pronoun(人称代)人称代名词 pl plural(复)复数(的) pp past participle (过去分词)过去分词 pref prefix(字首)字首 prep preposition(al) (介词)介词，介系词，介词的 pron pronoun (代)代名词 pt past tense(过去)过去式 sb somebody(某人)某人 sing singular(单)单数(的) sth something(某事物)某物或某事 suff suffix(字尾)字尾 un uncountable noun(不可数)不可数名词 US America(n)(美)美国(的) vverb(s) (动)动词 [VP]Verb Pattern(动型)动词类型 v iverb intransitive(不及物动词)不及物动词 vt verb transitive (及物动词)及物动词 除这十大类词之外，英语还另有判断词yes和no。 vi不及物动词 vt及物动词

后面的， behind There is a tall tree behind the house.房子的后面有一棵大树。

后面 [词典] behind; back; later; at the back; in the rear; [例句]这个问题我后面还要讲。I'll come back to this question later.