Kites whooshed above the beach at intervals.
风筝在沙滩上空时隐时现。
Kites have been used for scientific purposes in the western world.
风筝在西方已被用于科学目的.。
Flying kites have quite a long history.
放风筝的历史由来已久。
Kites have been flown in Japan for hundreds of years.
风筝在日本已经有几百年的历史了。