I like swimming in a pool, but changing into my bathing suit is a pain.
I really enjoy swimming in a pool, but changing in and out of my bathing suit is kind of a bother.
ーI like swimming in a pool, but changing into my bathing suit is a pain.
「プールで泳ぐのは好きだけど、水着に着替えるのが面倒だ」
to swim in a pool で「プールで泳ぐ」
to change into one's bathing suit で「水着に着替える」
pain で「骨折り・面倒なこと」
ーI really enjoy swimming in a pool, but changing in and out of my bathing suit is kind of a bother.
「プールで泳ぐのはとても楽しいが、水着を着たり脱いだりするのはちょっと面倒だ」
to enjoy swimming in a pool で「プールで泳ぐことを楽しむ」
to change in and out of bathing suit で「水着に着替えて、水着から着替える」
bother で「面倒・やっかい」
ご参考まで！
カナダ 
