between the first and second toes of the left foot
between the first and second toes of the left foot
と言えます。
例文
There is a wound between the first and second toes of the left foot.
左足の親指と人差し指の間に傷があります。
The redness appeared between the first and second toes.
親指と人差し指の間に発赤が見られました。