carry on an investigation in

对…进行研究  detail>>

carry on an investigation into

对…进行研究  detail>>

carry out an anchor

艇载抛锚(船身不动  detail>>

carry out an experiment in

做...实验, 对...做实验  detail>>

carry out an experiment on

做...实验, 对...做实验  detail>>

carry out an experiment with

做...实验, 对...做实验  detail>>

carry out an order, to

执行命令  detail>>

to carry out an investigation

进行调查  detail>>