四对，读音sì duì，汉语词语，意思是旧体诗文中的四种对仗。
四对
网络释义
短语
四对的 quadrijugous
四对方舞 FLEDERMAUSQUADRILLE ; Quadrille Dance
四对方舞抒情曲 LIEDERQUADREILLE
四对四 Four pairs four ; Four pairs of four ; four
反对“四风” Eliminating the “Four Malfeasances”
第四对 bottom side couple
六类四对非屏蔽双绞线 LSNH
四氯对苯醌 Chloranil ; Tetrachloro-p-benzoquinone ; Tetrachlorobenzoquinone
今天星期四对吗 Today on Thursday that it ; Today Thursday
双语例句原声例句
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我们再来一段龙虾四对舞好吗？
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经凝胶电泳分析，发现四对实验对象中有两对的酶的氨基酸序列略有差异。
Analysis by gel electrophoresis revealed slight differences in amino acid sequence of the enzymes of two of the four pairs.
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在庆祝情人节的“飞行婚礼”上，四对泰国夫妇用吊索吊在悬崖上，说着“我愿意”。
Suspended from a cliff by sling wires, 4 Thai couples are saying, "I do" in a "flying wedding" ceremony to celebrate Valentine's Day.
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For the carbon, we start with 4 valence electrons, we have 0 lone pair electrons minus 4, and we end up with a formal charge of 0.
对于碳，我们从四个价电子开始，我们有零个孤对电子，再减去四，最终我们有零个形式电荷。
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It shows an assessment of reading proficiency levels in fourth grade.
这项研究对,四年级同学的阅读熟练程度。
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So, if we want to figure out the formal charge on the carbon, we need to take the number of valence electrons, so that's 4. We need to subtract the lone pair, what number is that? It's 2.
如果我们想算出碳原子的形式电荷，我们需要将价电子的个数，也就是四，减去孤对电子的个数，它是多少？是二。
应用推荐
$firstVoiceSent
- 来自原声例句