sometimes moderate
有时适度
以上为机器翻译结果，长、整句建议使用 人工翻译 。
She faces sometimes serious, sometimes moderate, often with a smile.
她的表情时而严肃，时而温和，还常带着微笑。
youdao
Prescription treatments such as oral or topical tretinoin, topical clindamycin, and sometimes oral antibiotics such as doxycycline or minocycline are needed when acne is moderate.
CNN: How can I get rid of my acne?
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