reed grass / Chinese trumpet vine (Campsis grandiflora) (old)
龙须菜
lóng xū cài
asparagus / (Tw) young shoots of the chayote vine 佛手瓜[fo2 shou3 gua1]
罗汉果
luó hàn guǒ
monk fruit, the sweet fruit of Siraitia grosvenorii, a vine of the Curcubitaceae family native to southern China and northern Thailand, used in Chinese medicine
lit. if you have to use force to break a melon off the vine, it won't taste sweet (because it's only when the melon is ripe that it can be removed with just a slight twist) (idiom) / fig. if sth is not meant to be, it's no use trying to force it to happen