膝上

• laptop
• above the knee

例句

1. 他把婴儿放在膝上颠著玩。
   He bounced his baby on his knee.
2. 书从我膝上滑落。
   The book slid off my knee.
3. 小孩坐在妈妈的膝上。
   The child sat on its mother's lap.
4. 我把婴儿放在膝上上下颠着。
   I bounced the baby on my knee.