duly
/ˈdju:lɪ; ?@ ˈdu:lɪ; `dulɪ/ adv
1 in a due, correct or proper manner （方式）正当地, 正确地, 适当地
The president was duly elected. 总统已正式选出.
2 at the due and proper time; punctually 按时地; 适时地; 准时地
I duly knocked on his door at three o'clock. 我准时在三点钟敲了他的门.