... no bottom ==> 低音缺陷 no bottom found ==> 未能探测到海底 no bottom no top ==> 缺高低音 ...
权威例句
1.
The bottom line is they foundno relationship between debt and economic growth for the basket of observations below 90% but a strong relationship above it.
FORBES: Growing Federal Debt Threatens To Strangle Recovery
2.
And the polls foundno significant shift on the bottom-line question: Which candidate do you plan to vote for?
CNN: latimes.com: In many voters' minds, debate fails in the drama department