丙烯 的释义 | Babel Free
piŋ²¹⁴⁻²¹ ɕi⁵⁵释义
三元烯烴,常溫正常氣壓下為氣體,化學式C₃H₆
等义词
CEFR 等级
C2
精通
该词属于CEFR C2词汇——精通水平。
该词属于CEFR C2词汇——精通水平。
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