Subject + 适用 + 于 + Object
The verb 适用 (shìyòng) means "to apply to" or "to be applicable" and indicates that a rule, law, or standard is relevant to a particular situation or group. It is commonly used in legal and policy contexts, as in 仅适用于新申请 (only applies to new applications). It emphasizes the scope or relevance of something.
这条规定只适用于全职员工。
Zhè tiáo guīdìng zhǐ shìyòng yú quánzhí yuángōng.
This regulation only applies to full-time employees.
优惠活动不适用于已打折的商品。
Yōuhuì huódòng bù shìyòng yú yǐ dǎzhé de shāngpǐn.
The promotional offer does not apply to already discounted items.
这个方法同样适用于初学者。
Zhège fāngfǎ tóngyàng shìyòng yú chūxuézhě.
This method is also applicable to beginners.