他擅长数学。
他擅长数学。
当他们还是孩子的时候，Dereck安静又健康，他擅长数学和科学。
When they were kids, Dereck was quiet and healthy, he was good at math and science.
他擅长数学和物理。
我的父亲又高又瘦。他的身体非常强壮，善良。他擅长数学。我喜爱和他一起玩耍。他是很多。
My father is tall and thin, too. He is very strong and kind. He is good at math. I like to play with him. He is mang.
乔查尼先生穿着像个流浪汉，然而却是个深解人类多种领域学问的大师，包括科学，数学，哲学，特别是犹太法典《塔木德》他都擅长。
Chouchani dressed like a vagabond but was a master of vast areas of human knowledge, including science, mathematics, philosophy and especially the Talmud.
他的纯数学一塌糊涂，但是他却擅长一切包含空间关系和设计的东西。
He gets thrown off by pure mathematics, but he's good at anything involving spatial relationships and design.
Jacobs接着说“校长告诉我他是学校里最聪明的孩子”，“当时即使他特别小，他特别擅长数学，精于计算。
"A principal described him to me as the smartest boy in the school," says Jacobs. "He was particularly good at math, even then.
他擅长于数学(语言)。
乔不擅长运动，但是一提到数学，他却是班上最好的。
Joe is not good at sports, but when it comes to mathematics, he is the best in the class.
他不太擅长数学和科学。
汤姆不擅长数学。老师经常发现他在数学考试中作弊。
Tom is not good at math. The teacher often catches him cheating in the math exams.
他确实擅长数学，是不是？
他十分擅长学数学。
这个故事里的小男孩在学校成绩不好，无论是语文还是数学他都不擅长。
The story of the little boy doing well in school, whether he was not good at mathematics or languages.
他擅长的不是英语，而是数学。
一旦一名孩子开始擅长某些东西--数学，钢琴，投（棒）球，或者芭蕾--他就会受到夸奖，被羡慕和有满足感。
Once a child starts to excel at something—whether it's math, piano, pitching or ballet —he or she gets praise, admiration and satisfaction.
他不擅长数学。
他学会了读书和写字，还特别擅长数学。
He learnt to read and write and was particularly good at mathematics.
我的父亲擅长语言，但是他不擅长数学和科学。
My father was good at languages, but he wasn't very good at maths or science.
他擅长打网球(学数学)。
从他的信中，我知道他数学学得很好但是不擅长体育。
From his letters, I know that he is good at maths and bad at PE.
第二，如果他是个小学生就更好了。实际上，我很擅长教授基础数学。
Actually, I am good at teaching mathematics on elementary level.
第二，如果他是个小学生就更好了。实际上，我很擅长教授基础数学。
Actually, I am good at teaching mathematics on elementary level.
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