busying的音标？

They are busying themselves ( in ) packing up.他们正忙活着整理行装.She is busying herself about the house.她忙于家务.That volcanologist was busying with memoir after his retirement.自从退休以后,那位火山学家一直忙于撰写回忆录....

v.忙着做某事( busy的现在分词 )...