double negative

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However, in languages that do not have negative concord, such as Standard English and German, a double negative is understood to resolve into a positive.
然而在那些不具有否定和諧的語言中，比如標準英語和德語，雙重否定會形成肯定。
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It also discovers that the grammatical placement has nothing to do with the semantic misplacement, but exerts remarkable effect on the occurrence of the double negative modalized statements.
英漢語言模態句中否定詞的語義錯位與其語法位置無關，但雙重否定句卻與否定詞的語法位置有密切關系。
The design method and electromagnetic characteristics of cavity backed microstrip antenna with double negative (DNG) substrates are studied in the paper.
研究了以雙負材料爲襯底的背腔微帶天線的設計方法與電磁特性。

If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要討論兩個氫原子，我們衹需要把它乘以二，因此應該是負的，2624，千焦每摩爾,這就是單個的氫原子的情況。
麻省理工公開課 - 化學原理課程節選

Despite double-digit negative returns in 2000 and 2002, his fund has had a good run.
FORBES: Stepping South Of The Border
This is the third negative double-digit spread in the past four weeks.
FORBES: Unusually High Level Of Pessimism Plagues Investors
Analysts are actually expecting negative double digit growth when compared to last year, so the picture is pretty terrible all around for the GRMN.
FORBES: Garmin Loses Its Way As Competition Surges

the use of two negatives (= words that mean "no") in the same phrase or sentence

a syntactic construction, often considered ungrammatical in standard Modern English, in which two negatives are used where one is needed, as in I wouldn't never have believed it