Heaven knows
天知道, 确实无疑地
🧩 词语组成解析
heaven
['hɛvn]
n. 天;天堂;上帝;极乐;
v. 知道（know的第三人称单数形式）
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
Love is sweet in the beginning but sour in the ending.
爱情始甜而终苦。
No, thank you. Tom.I've already had lunch.
不，汤姆，谢谢。我已经吃过饭了。