You should often look up words in a dictionary, especially learning English by yourself.
你应当经常在词典里查单词，特别是自学英语。
Social media are used very frequently in modern education, especially learning Business English.
社会媒体在现代教育中的使用频率很高，尤其是学习商务英语。
Social media are used very frequently in modern education, especially learning Business English.
社会媒体在现代教育中的使用频率很高，尤其是学习商务英语。
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