In the course of the 1930s steel production in Britain approximately doubled

　　在20世紀30年代，英國的鋼鐵產(chǎn)量幾乎翻了一番。

　　Take approximately 60mg up to four times a day, unless advised otherwise by a doctor

　　每次服用大約60毫克，每天最多4次，或遵醫(yī)囑。

　　At approximately 11:30 p.m., Pollard finally gave his consent to the search

　　大概晚上11點半的時候，波拉德最終同意進行搜查。

　　The conservatory measures approximately 13ft x 16ft.

　　溫室的大小大約是13英尺乘16英尺。

　　The plane will be taking off in approximately ten minutes.

　　飛機大約10分鐘后起飛。