猜猜看！

随便

1)   When I'm used, I'm useless,         
    once offered, soon rejected.         
2 u1 A" V4 n& g    In desperation oft expressed,         
4 s. M8 {+ P) R9 c    the intended not protected.                                    
* g- S0 W1 x' Z3 a2 l    What am I?   

9 u% N! F2 g4 {. ~; k% L5 n2)  Half-way up the hill, I see you  at last
" P( O! d6 }  I; e' l, s+ y0 n3 i    Lying beneath me with your sounds and sights -
$ @; L0 M/ {. F% D: b8 o# U# U5 L    A city in the twilight, dim and vast,
" n% A- E  @" T2 C    With smoking roofs, soft bells, and gleaming lights.   
3 O9 R) F  Y$ V) W$ j' J
3)  Out of the eater came something to eat,
/ `1 z- w. Q; @2 B& M! z2 g" \& F3 M    And out of the strong came something sweet.   
$ x: S( h; W+ g/ ~2 J$ R! [% Z
! Q6 W8 Q; U  q& o4)  I've little strength, but mighty powers;         
1 d( f) X" n: f/ J. @! ^    I guard small hovels and great towers.         
: H& {9 L, Q8 d; B& N    But if per chance my master leaves,         
7 m. I& W' `7 J! a; U    He must ensure he safeguards me.                     
    What am I?

connie

UP!!!!!

随便

tell me your answer?