usefullyKK [ˋjusfəli] /ˈjusfəli/发音副词1有用地、有效地、有益地She spent the afternoon usefully by organizing all the files.她把整个下午用得很有意义,把所有档案都整理好了。2不妨、值得正式We might usefully ask whether the policy achieved anything at all.我们不妨问一问,这项政策究竟有没有任何成效。用这个字练口说→