他感到恶心、眩晕，然后就昏了过去。He felt sick and dizzy and then passed out.她感到一阵眩晕。A wave of giddiness swept over her.我们正以令人眩晕的速度下降。We're descending now at dizzying speed....
这种作图法常被称为矢量相加的平行四边形法则.This construction is often called the parallelogram law of addition of vectors.赤平极射投影还要有其他的作图方法加以补充.The stereographic projection must be supplemented by other constructions.吉布斯提出用等边三角形作图, 这已成为三元体系的标...