surely; certainly; necessarily; fixed; a certain (extent etc); given; particular[cedict]
在
zàiㄗㄞˋ
(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
琢磨
zhuó móㄓㄨㄛˊ ㄇㄛˊ
to polish (jade); fig. to think through; to mull over[cedict]
是
shìㄕˋ
is; are; am; yes; to be[cedict]
怎么
zěn meㄗㄣˇ ㄇㄜ˙
how?; what?; why?[cedict]
回
huíㄏㄨㄟˊ
to circle; to go back; to turn around; to answer; to return; to revolve; Hui religious minority (Chinese Muslims); time; classifier for acts of a play; section or chapter (of a classic book)[cedict]