2 sentences for 手心 (shǒu​xīn)

1. 他逃不出我的手心。

   tā táo bù chū wǒ de shǒu​xīn.

   He cannot escape my grasp.

   Source: Dong Chinese Dictionary

2. 他在手心里放了一枚硬币。

   tā zài shǒu​xīn lǐ fàng le yī méi yìng​bì.

   He placed a coin in the palm of his hand.

   Source: Dong Chinese Dictionary