Level 352
Level 353

sin


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sin
sin。 (L sinus)=curve 弧线
sine
[sin;-e]。 n.正弦
cosine
[co-(com-);sin;-e]。 n.余弦
sinuous
[sin;-u-;-ous a.]。 a.蜿蜒的,曲折的; 不老实的
insinuate
[in-;sin;-u-;-ate v.]。 v.使潜入; 暗示
Level 354