of or relating to or characteristic of conditions in the subtropics;
\\\"even near the equator vegetation at 5000 ft is subtropical rather than tropical\\\"
造句
用作形容詞(adj.)
Henan Province is situated in the transition zone of subtropic and temperate zone with a lot of species of Russula genus. 河南省位于暖溫帶和亞熱帶的過渡地帶，因此紅菇屬的種類分布較為豐富。