数学符号
+ 增加;补充;除此之外另外(furthermore, in addition to, with, and, besides, etc)
— 减少;删除;缺乏(minus, lack)
× 表示“不对的,错的,坏的,不好的,臭名昭著的”(incorrect, wrong, bad, inappropriate, notorious)
> 超过,大于,胜过,优于(more than, bigger than, surpass, better than, superior to)
< 小于,不足,次于,逊色(fewer than, less than, worse than, inferior to)
= 等于符号(equal) 在听力笔记中相当于“与…一样”(equal to, the same as), 另外可以表示“是…的对手“(a ri-val, a competitor)等意思。那么,
≠ 表示否定意思“不等于”(not equal to ),或者“不是…对手”(no match for)
≈ 表示“大约,左右”(approximately, around, about, or so)
∑ 总和;总数(total, the total number/sum, totally)
∵ 表示“原因,理由”(because, owing to, thanks to, due to)
∴ 表示“结果、结论”(therefore, as a result, consequently, so)
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