英 [ˈhelpfəli] 美 [ˈhelpfəli]
adv. 有益地；有用地
in a helpful manner
the subtitles are helpfully conveyed
... helplessly 无助地；无能为力地 helpfully 有益地；有用地 help 帮助；补救办法；帮忙者；有益的东西 ...
... helplessly 无助地；无能为力地 helpfully 有益地；有用地 help 帮助；补救办法；帮忙者；有益的东西 ...
有益地；有用地
'Let me explain!' he added helpfully.
“让我来说明一下！”他热心地补充道。
He gave his name and then helpfully spelled it.
他说出了他的名字，然后又热心地把它拼读了出来。
She helpfully suggested that I try the local library.
她很热心地建议我试试本地的图书馆。
Better to avoid the unstable hammocks altogether, since they're filled with snakes, occasional bears, and flesh-eating plants that, helpfully,feed on mosquitoes.
VOA : standard.2010.03.29
Organisers have helpfully put on shuttle busses to take press from downtown Malmo to the arena.
The next sentence offered the names of contacts at DOT and helpfully included a phone number.
As the site helpfully points out, telling a story is different from lodging a complaint.