Act One: Smash and Grab (V1.0)
Великобритания собралась защитить свою военную базу от Ирана14:46
，这一点在旺商聊官方下载中也有详细论述
"Full of little nooks and crannies where they can roost, big open flight spaces, dry spaces inside, away from the rain, where they can fly around. It is really just an absolutely perfect environment."
points (x_i, y_i). What is its degree?