stiffen的一般过去时怎么写？

He tried to stiffen his wavering soldiers.他企图使动摇的士兵坚强起来.These clothes restrict your freedom of movement and stiffen up the whole body.这些衣服使你行动不便，让全身都变得不灵活。I felt my body involuntarily stiffen against her invasion of my p...

The blood supply to the skin is reduced when muscles stiffen.当肌肉变得僵硬时，皮肤的供血量就减少了。I must stiffen Dreamer's back.我一定要给德里麦打气.These clothes restrict your freedom of movement and stiffen up the whole body.这些衣服使你行动不便，让全身都...

stiffen的音标：stiffen的英式发音音标为：['stɪfn]stiffen的美式发音音标为：['stɪfən]...

stiffen的现在进行时为：stiffening...

stiffen的第三人称单数（三单）为：stiffens...

vt.& vi.（使）变硬，（使）强硬，使绷紧，使猛烈，使粘稠...

stiffen的现在完成时为：stiffened...

他正在吹喇叭.He is blowing a trumpet.士兵们吹喇叭鸣号角.Soldiers trumpeted and bugled.他开始嘲笑他祖父不要他吹喇叭的训戒.He began to laugh at his grandfather's warning against blowing his horn....

“淡漠”的拼音为：dàn mò ...

“胶化”的拼音为：jiāo huà...

neutral的比较级为：more neutral...

贝日阿托氏菌科...

chorused的音标：...

“世仇”的反义词：世交。...

tide的第三人称单数（三单）为：tides...

adv.斜，斜视...

“流尽”的拼音为：liú jìn...

“棉籽”的拼音为：mián zǐ...

她母亲死了,她穿上了丧服.She went in to mourning on the death of her mother.感谢上帝, 你总算没穿着破衣衫或者丧服到这里来!Thank God, you aren't in rags or mourning!全家都穿了丧服去参加葬礼.The family was dressed in mourning for the funeral....

“停工”的拼音为：tíng gōng...

The bootblack bought the black boot back.擦鞋童买回来了一双黑色的长靴....

pancake的现在进行时为：pancaking...