If you do that kind of thing (here in Japan), people will make complaints (to the police) straight away
If you let off fireworks in the middle of the night here in Japan, someone will complain straight away
「そんなことをすればすぐにクレームがくる」＝ If you do that kind of thing (here in Japan), people will make complaints (to the police) straight away
「年明けに日本で夜中に花火を打ち上げたらすぐにクレームがくる。」＝ If you let off fireworks in the middle of the night here in Japan, someone will complain straight away
ボキャブラリー：
クレームがくる ＝ someone will complain/make a complaint
夜中に ＝ in the middle of the night
花火を打ち上げる ＝ let off fireworks
イギリス 
