在: exist; be living中午: 12点 high noon之前: before; prior to; ago在……之前,在……前头: ahead of在……的前面,在……之前: in advance of到…为止;在…之前: until在……前在……之前: before在……之前;比……进步: in advance of在…之前,超过…: ahead of在…之前的: popular with在…之前来: come before前面的,在……之前的: anterior to在…之前,领先于,优先: precede表示早于,在……之前,应选用: before中午: noon; midday; noonday 中午前后 about [around] noon; 中午 12点 high noon; 现在已过中午了。 it is past noon之前: before; prior to; ago 五年之前 five years ago; 在她动身之前 prior to her departure; 开会之前 before the meeting; 临走之前 prior to departure; before departure; 两周之前 two weeks ago在: Ⅰ动词1.(存在; 生存) exist; be living 精神永在。 the spirit still exists. 我父母健在。 both of my parents are living now.2.(表示人或事物的位置; 留在) stay; remain 在领导岗位 be in one's power; 我父母在北京。 my parents are in beijing. 你的书在桌子上。 your book is on the table.3.(参加; 属于) join or belong to an organization; be a member of an organization 在组织 join an organization4.(在于; 决定于) depend on; lie in; rest with 事在人为。 human effort is the decisive factor. 企业兴衰主要在经营管理。 the uprising or downfalling of an enterprise lies in its management or administration. 事情的成败在你自己的努力。 the success or failure of the matter depends on your own effort.Ⅱ副词(正在) in process of; in course of 一切都在变。 all are changing. 老师在备课。 the teacher is preparing the lesson. 他们在聊天。 they're having a chat.Ⅲ介词(表示时间、处所、范围等) 在半夜 in the midnight; 在礼堂开会 have a meeting in the auditorium; 在车站 at the station; 在这种情况下 under these circumstances; 坐在我右边 sit on my right; 在战争中 during the war; 在整个历史上 throughout history; 在理论上 in theory; theoretically; 在这方面 in this respectⅣ名词(姓氏) a surname 在育zai yu大约(中午): about(noon)到中午: by noon在中午: at noonday中午时: noon〔罕用语〕中午,正午。: midnoon身中午时: yin-generation time时过中午: it has turned noon夏令时中午: daylight saving noon