If I had known that, I could have helped you.
假如我早知道，我就能帮你了。
疯狂英语特别拿手好戏卡
第 18 部分
📚 句中词汇解析
从本句中提取的重要词汇
adj. 大家知道的;已知的;知名的;向某人作自我介绍;
v. 知道( know的过去分词 );看到过;听到过;经历过;
"There is no known antidote to the poison."
这种毒的解药尚未发现。
近义：acknowledged, familiar, noted, reputable, reputed
反义：ignored, obscure, unadmired, unbeknown, unfamiliar, unidentified