Several studies point to a real cause for concern over the adequacy of the diet eaten by British children.针对英国儿童膳食质量的担忧，数份研究将矛头指向了同一根源。Fill out the application form carefully, and keep copies of it.仔细填写申请表，一式数份。An unlimited number of copies can still be made from the original.仍可以由原件复印出无数份副本来。They laboriously copied out manuscripts.他们费劲地抄出数份手稿。