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couplet ['kʌplɪt] n
gen. 一对; 一双; 对句; 双韵; 双联; 偶联体; 回旋曲的插部
dril. 双根两根钻杆组成的立根
oil 层偶; 粗细粒互层; 粗细粒相间沉积物; 配对层
tech. 耦联体; 由两根钻杆组成的双根
 English thesaurus
couplet ['kʌplɪt] n
lit. A pair of rhyming lines in verse, e.g The dog ate the cat/But forgot about the bat.
couplet
: 8 phrases in 7 subjects
Agriculture1
Air defense1
Exhibitions1
Nursing1
Reproductive biology1
Shipbuilding1
Technology2