One large candle on the birthday cake represents 10 years.
Each large candle on the birthday cake stands for 10 years.
上記の例文、"each"と"one"、"represents"と"stands for"を入れ替えることができます。
そうすると:
・"One large candle on the birthday cake stands for 10 years."
・"Each large candle on the birthday cake represents 10 years."
小さいろうそくが1歳を表すなら、下記になります:
・"One small candle on the birthday cake stands for 1 year."
・"Each small candle on the birthday cake represents 1 year."