天晴小猪猪
calf n.(pl.calves [kB:vz])小牛, 牛犊, (鲸, 象等大哺乳动物的)仔小牛皮大岛附近的小岛冰山[川]崩落下的冰块呆头呆脑的男子腓, 小腿in [with] calf 母牛怀孕slip the [her] calf (牛)流产
亲爱的猫猫99
1、knee指生理上的膝盖。
2、lap指膝盖周围的空间，一般不单独指称生理上膝盖。
knee，英语词汇，基本释义为膝关节、膝、膝盖。
参考例句
The knee jerk is a typical respondent.
膝反射是一种典型反射。
To scratch the back while the knee is itching—irrelevant.
膝痒搔背。
The little boy behaved bravely after he hurts his knee.
小男孩膝盖受伤后表现地很勇敢。
They had to wade knee-deep through mud and debris to reach the victims.
他们须通过齐膝的烂泥和堆积物,磕磕绊绊来到遇难者身旁。
There was an even more pronounced link between regular dancing in three-inch heels and a reduced risk of knee problems.
研究者们甚至发现经常穿三英寸高的高跟鞋跳舞明显和降低膝盖得病的危险有关。
参考资料：百度百科-knee
美美吻臭臭
小腿 [词典] calf; crus; shank; [例句]她冲他鼻子打了一拳，又在他小腿上踢了一脚。She punched him on the nose and kicked him in the shins.
lin2000west
1、lap，英语单词，名词、及物动词、不及物动词，作名词时意为“一圈；大腿；下摆；山坳；（Lap）(越)拉普（人名）”。 2、作及物动词时意为“使重叠；拍打；包围；缠绕；舔舐；领先一圈”，作不及物动词时意为“重叠；轻拍；围住”。
沐小宁橙紫儿
两者区别如下：
1、lap指膝盖周围的空间，大腿前侧，一般不单独指称膝盖。比如笔记本电脑叫做laptop，就是放在腿上用的意思。
2、knee才是指生理上的膝盖。如：in(on) your lap. get down on your knee(s)。
knee，英语词汇，基本释义为膝关节、膝、膝盖。
参考例句
The knee jerk is a typical respondent.
膝反射是一种典型反射。
To scratch the back while the knee is itching—irrelevant.
膝痒搔背。
The little boy behaved bravely after he hurts his knee.
百度百科-knee
百度百科-lap
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