为什么我的XMR钱包发送币出去,只有一半能成功,一半不成功。

??
结果钱包里还有币,但是无法发送,一发钱包显示:
Error: transaction <fe33df230d1c87a3f41e1b7bc69a03142071629a846ef000563092d3148c
e381> was rejected by daemon with status "Failed"
守护文件显示:
2016-Mar-04 23:37:18.820164 [RPC0]ERROR ..\..\src\cryptonote_core\tx_pool.cpp:62
Transaction with id= <fe33df230d1c87a3f41e1b7bc69a03142071629a846ef000563092d31
48ce381> used already spent key images
2016-Mar-04 23:37:18.828165 [RPC0]Transaction verification failed: <fe33df230d1c
87a3f41e1b7bc69a03142071629a846ef000563092d3148ce381>
2016-Mar-04 23:37:18.832165 [RPC0][on_send_raw_tx]: Failed to process tx