This same feature is incorporated in the S - IV and the S - IVB stages.

S -IV 和S-IVB级包括了一些同样的特点.

辞典例句

For this reason, IVA can B register tones, and IVB can merge with register tones.

因此, 阴入字可以并入阳调, 阳入字可以并入阴调.

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