查询词典 be surprised at sth. perfectly normal

和 be used to sth. / doing 的用法区别：use sth. to do sth..; be used to do sth. ; be used for sth.; used to do sth

(1)He showed great courage in battl... | (2) He gained courage to catch up with hi... | 2.use sth. to do sth..; be used to do sth. ; be used for sth.; used to do sth. 和 be used to sth. / doing 的用法区别

perfectly elastic：完全弹性

perfectly discriminating monopolist 实行完全价格歧视的垄断者 | perfectly elastic 完全弹性 | perfectly inelastic 完全无弹性

perfectly elastic material：完全弹性材料

完全弹性碰撞 perfectly elastic impact | 完全弹性材料 perfectly elastic material | 完全非弹性碰撞 perfectly inelastic collision

perfectly inelastic impact：完全非弹性碰撞

perfectly inelastic collision 完全非弹性碰撞 | perfectly inelastic impact 完全非弹性碰撞 | perfectly plastic 完全塑性的

perfectly inelastic demand：完全无弹性需求

perfectly elastic supply完全彈性供給 | perfectly inelastic demand完全無彈性需求 | perfectly inelastic supply完全無彈性供給

perfectly inelastic supply：完全無彈性供給

perfectly elastic supply完全彈性供給 | perfectly inelastic demand完全無彈性需求 | perfectly inelastic supply完全無彈性供給

perfectly plastic：完全塑性的

perfectly inelastic impact 完全非弹性碰撞 | perfectly plastic 完全塑性的 | perfectly plastic torsion 完全塑性扭转

perfectly rigid body：完全刚体

perfectly plastic torsion 完全塑性扭转 | perfectly rigid body 完全刚体 | perfectly smooth 完全光滑的

perfectly rigid body：完全刚体, 理想刚体

perfectly plastic torsion 完全塑性扭转 | perfectly rigid body 完全刚体, 理想刚体 | perfectly smooth 完全光滑的

Perfectly Fit Flirty：完美合体性感

Perfectly Fit Sheer Signature 完美合体纯亚麻 | Perfectly Fit Flirty 完美合体性感 | Perfectly Fit With Lace 完美合体附扎带

saltshaker：食盐瓶

食血动物sanguivorous | 食盐瓶saltshaker | 食言renegerenegue

tip one's hand：摊牌,表明立场

get/ gain the upper hand 占上风 | tip one's hand 摊牌,表明立场 | bite the hand that feeds one 恩将仇报