The bathrooms are going to be crowded at lunch time, so I better go now before they get bussy.
Now might be a good time to go to the bathroom before it gets too busy in there.
ーThe bathrooms are going to be crowded at lunch time, so I better go now before they get busy.
「昼休憩でトイレが混むから、混む前に今のうちに行っておこう」
bathroom で「トイレ」
to be crowded で「混み合う」
to get busy で「忙しくなる・混み合う」
ーNow might be a good time to go to the bathroom before it gets too busy in there.
「トイレが混み合う前に今行っておいた方がいいかも」
Now might be a good time to ... で「…するのに今が良い時間かもしれない」
ご参考まで！
カナダ 
