As the droplets jump, they carrycharge from one plate to the other; if the two plates are connected through an external circuit, that charge difference can be harnessed to provide power.
Having declared he needed more money to carry out the task he took charge of, he rushed to the construction site.
他声称需要更多钱来完成他所负责的工作 ，随后他就冲到工地去了。
3
First airlines, then road hauliers and railways, were freed from restrictions on what they could carry, where they could haul it and what price they could charge.