They were held back by the slight difficulty.应该怎么翻译

They were held back by the slight difficulty.应该怎么翻译 这几句英语怎么翻译?1.They worked day and night and were paid by the h you never know the words I held back 等翻译, They were sitting by the river They were ___________(welcome) by the history. 翻译：We find that bright children are rarely held back by mixe the girl__flying in the opposite direction by a slight touch They are going back to the country _____they were born _____ they were sweeping the floor ,John came back when they turned back the same words were they were held up at the airport for 3hours是什么意思 请教翻译：They were matched together by a family friend.