The system was introduced on a trial basis for one month.

　　這個制度已引進試行一個月。

　　Have you read this month's 'Physics World'?

　　你看過這個月的《物理世界》嗎？

　　The new computer system comes on stream next month.

　　新的計算機系統下月投入使用。

　　The magazine will appear in a new design from next month.

　　從下月起這本雜志將以新的設計問世。

　　The plans are still no further forward than they were last month.

　　計劃無絲毫進展，仍是上個月的老樣子。