in-out

One could hear them singing and dancing merrily out in the street.

人们在外面的街道上都能听到他们欢快的歌舞声。

You are confusing two ideas—you should try to separate them out in your mind.

你把这两个观点弄混了, 你该在心中设法把他们区开。

Invented by out parent company in 1865, Malt Extract, together with its end-products Ovaltine and PaiLacovo, is now widelyused in the food industry.

母公司于1865年发并开始生产麦精。

Co-gasification of Huainan coal, waste wood and waste polyethene (PE) to produce fuel gases with high H2 was carried out on a fluidized bed reactor in out laboratory.

开展了利用煤、废木屑和聚乙烯废料进行共气化以制备富氢燃料气的研究。