The leaves smell good. I love the smell of fallen leaves.
Can you smell the leaves? I love the smell of leaves on the ground in the fall.
ーThe leaves smell good. I love the smell of fallen leaves.
「葉っぱの良い匂いがする。落ち葉の匂いがすごく好き。」
... smell good で「…の良い匂いがする」
fallen leaves で「落ち葉」
ーCan you smell the leaves? I love the smell of leaves on the ground in the fall.
「葉っぱの匂いする?秋の落ち葉の匂いがとても好き。」
leaves on the ground 「地面の葉っぱ」=「落ち葉」とも言えます。
ご参考まで!