If you go on a staff trip, you will probably go to an onsen so there'll be times when you are naked with your colleagues.
Company retreats often involve going to the onsen so you'll have to bathe naked with your colleagues.
「社員旅行で温泉に行き裸の付合いをする事もある」＝ If you go on a staff trip, you will probably go to an onsen so there'll be times when you are naked with your colleagues. / Company retreats often involve going to the onsen so you'll have to bathe naked with your colleagues.
ボキャブラリー
社員旅行 ＝ staff trip / company retreat
温泉 ＝ onsen/hot spring
裸 ＝ naked
colleague/co-worker ＝同僚
bathe ＝ お風呂に入る
イギリス 
