打开

dǎ kāi to open; to show (a ticket); to turn on; to switch on

：bb77net 手

shǒu hand; (formal) to hold; person engaged in certain types of work; person skilled in certain types of work; personal(ly); convenient; classifier for skill; CL:雙|双[shuang1],隻|只[zhi1]

输

shū to lose; to transport; to donate; to enter (a password)

乐天

lè tiān carefree; happy-go-lucky; optimistic

使

shǐ to make; to cause; to enable; to use; to employ; to send; to instruct sb to do sth; envoy; messenger