Dioecy
雌雄异株
🗣️ 情景例句
I do mean it.
我的确是说真的。
If two men ride on a horse, one must ride behind.
两人同骑一马，必有一人在后。
I've come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。