I doubt his professional expertise.
我对他的专业知识带有怀疑。
I want to gain professional expertise and also improve my language skills.
我想一方面好好充实专业知识，一方面增进语言能力。
Trust your professional advisers and accept their expertise.
信任你的专业顾问，接受他们的专业意见。
DIFFERENTIA: Protect customer's interest by professional ability, experience and expertise.
服务特点：以专业能力和经验维护客户利益。
Advice should be ongoing and given by a health professional who has expertise in nutrition.
咨询应该是当前和提供一个健康的专业谁具有专长的营养。
Advice should be ongoing and given by a health professional who has expertise in nutrition.
咨询应该是当前和提供一个健康的专业谁具有专长的营养。
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