growolder是长大的意思，较用于小孩成年后
例：I want to be a teacher when I grow up当我长大后我想当一名老师
而grow old是成熟，老去的意思，较用于中年人老了以后
例：Those who love deeply never grow old那些彼此深爱的人会永保青春。
这里的never grow old是不会老去的意思
grow old的意思是变老长大衰老状态的变化白头偕老。例如：You know when people say they want to grow old together? 你知道人们常说想一起变老
grow older的意思是变老。例如：As I grow older， I play less attention to what men say. 随着我渐渐变老，我越来越少在意人们在说些什么。
growold释义：
变老
例句：
Time makes you grow old， and experiences make you grow up.
时间让人成长，经历让人成熟。
At the wedding party， the bride and the bridegroom expressed that they would live in harmony and mutual respect and grow old together.
婚礼上，新娘和新郎表示要互敬互爱，白头偕老。
growolder释义：
长大
变老
例句：
Children lose their innocence as they grow older.
儿童随着年龄的增长而失去其天真。
