Sailors would make scrimshaw when they were not busy with their work.

VOA: special.2011.06.29

Or if you go to like little studios or galleries and their openings are really busy.

比如，如果你去小型的工作室或美术馆，那儿开放时真的很拥挤。

艺术画廊，来吧 - SpeakingMax英语口语达人

They always appear to be busy, moving around their homes,or hives.

VOA: special.2009.06.28

While most American students are on their summer vacations, many teachers are busy attending training programs and getting ready for the coming school year.

VOA: standard.2010.08.10

Everyone would be busy earning money for their children, so they wouldn't fight."

VOA: standard.2010.07.06

That means the people of quaint Cape May,New Jersey, may already be busy, airing out their sumptuous homes in preparation for the annual rush of beach-loving guests.

VOA: standard.2010.03.15

Orders for commercial airplanes are expected to be lower this year, as airlines cope with an expected America's Boeing executives in Dubai put on a brave face, saying that fulfilling back orders will keep their production lines busy.

VOA: standard.2009.11.15