英语翻译用 used to be 翻译

英语翻译用 used to be 翻译 used to be翻译 英语翻译be used as to? 用used to ,get used to ,be used for ,be used as ,be used by 的 英语翻译rt是used to be 不是used to do 用be used to,be used for,be used by,be used as,be used in 的适当 used to be the living room翻译 翻译：It used to be even better. 用used to be 造句 Used to be used to 用 used to,be used to do,be used to doing 各造两个句子 用used to do be used to doing造句