Correct

回交

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Strokes

Definition

backcrossing (i.e. hybridization with parent)

Example

As a Verb

backcross

1
Huí
回
jiāozǐ
交子
dài
代

backcross progeny

2
Huí
回
jiāo
交
zázhǒng
杂种

backcross hybrid

3
Huí
回
jiāoqīn
交亲
běn
本

backcross parent