戴恩本人就特别热衷的群图解的倡导者.Dehn himself was a particularly enthusiastic advocate of group diagrams.图解方法特别适用于起伏大的构造.This graphical technique is particularly applicable to high - relief structures.等高线是用等间距图解描述构造形态的.Contours are gra...
Her spouse will come to see her on Sunday.她的配偶星期天要来看她.It is often helpful to have your spouse in the room when major news is expected.等待重大消息时最好有配偶在场。Her father is an ultra - conservative who is still opposed to freedom t...