biovular + noun
biovular 通常修饰 twins，但也可修饰其他名词如 pregnancy。
The doctor explained that they were biovular twins.
医生解释说他们是双卵双胞胎。
双卵性的；异卵的
源自两个不同卵子的；非同卵的或异卵的。；(双胎)双卵性的；[医] 双卵性的
源自两个不同卵子的；非同卵的或异卵的。
derived from two separate ova; non-identical or fraternal
The twins are biovular, so they don't look exactly alike.
这对双胞胎是双卵性的，所以他们的长相并不完全一样。
用法提示：biovular 在此句中作表语形容词，描述双胞胎的类型，表示“双卵性的”。
Biovular twins can be of the same or different sexes.
双卵性双胞胎可能是相同或不同性别。
用法提示：biovular 作定语修饰 twins，说明双胞胎的受精卵来源不同。
Unlike identical twins, biovular twins develop from two separate eggs.
与同卵双胞胎不同，双卵性双胞胎由两个不同的卵子发育而来。
用法提示：biovular 作定语修饰 twins，强调其与同卵双胞胎的区别，即由两个卵子分别受精而成。
biovular 通常修饰 twins，但也可修饰其他名词如 pregnancy。
The doctor explained that they were biovular twins.
医生解释说他们是双卵双胞胎。
These twins are biovular, not identical.
这对双胞胎是双卵性的，而不是同卵的。
grammar · medium
易错句子These twins are biovular, so they look exactly alike.
正确表达These twins are univular, so they look exactly alike.
Biovular 指双卵性的，即两个不同的卵子发育而来，通常长得不相似；而 univular 指单卵性的，即同一个卵子分裂而成，通常长得一模一样。此处混淆了概念。
grammar · medium
易错句子She gave birth to biovulars.
正确表达She gave birth to biovular twins.
Biovular 是形容词，不能直接用作名词。表达“双卵性双胞胎”时，需要保留名词 twins。
与biovular拼写不同但意义相同，常被误认为拼写错误
dizygotic是更正式的专业术语，而biovular较少用
univoular指来自一个卵子，与biovular的“双卵”相反，易混淆
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