Modern video cameras are light and easy to carry.

　　新型的攝像機(jī)很輕，容易攜帶。

　　Credit cards eliminate the need to carry a lot of cash.

　　有了信用卡就用不著攜帶很多現(xiàn)金。

　　The work will be carried out at a future date.

　　這項(xiàng)工作將來再做。

　　He has carried out extensive research into renewable energy sources.

　　他已經(jīng)對(duì)再生能源進(jìn)行了廣泛研究。

　　The research was carried out on a modest scale.

　　這個(gè)研究項(xiàng)目開展的規(guī)模不算太大。