She is good at study as well, especially mathematics and English.
她的学习也很好，尤其是数学和英语两门课目。
He said he found mathematics especially hard, blaming the subject for dragging down his score.
他说他发现数学特别难，托了他的分。
A. Study mathematics, especially mathematical logic.
数学，特别是数学逻辑。
A. Study mathematics, especially mathematical logic.
数学，特别是数学逻辑。
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