(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
第四
dì sìㄉㄧˋ ㄙˋ
fourth; number four[cedict]
格
géㄍㄜˊ
square; frame; rule; (legal) case; style; character; standard; pattern; (classical) to obstruct; to hinder; (classical) to arrive; to come; (classical) to investigate; to study exhaustively[cedict]
這裏
zhè lǐㄓㄜˋ ㄌㄧˇ
here; variant of 這裡|这里[cedict]
是
shìㄕˋ
is; are; am; yes; to be[cedict]
禁止
jìn zhǐㄐㄧㄣˋ ㄓˇ
to prohibit[cedict]
抽煙
chōu yānㄔㄡ ㄧㄢ
to smoke (a cigarette, tobacco)[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]