英语翻译：我希望我的书将阐明我们面临的复杂问题。
I hope my book will elucidate the complex issues we face.
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Thecolloquialorspokenlanguageisthelanguagefortheuseofthe________.
Wehavetopointoutthatthepostponementofthefulfillmentofthecontract______causeduscertainexpenses.
_______inthought,healmostranintothecarinfrontofhim.
________hehasmanyfriends,heisoftenfeelinglonely.
It_______fortwohoursnow