巴西的奇树杨佳在巴西茂密的丛林中，有一种当地人称为“莫尔纳尔帝”的灌木。这种木本植物十分奇特。白天它会不停地发出一种徐缓的乐曲声，声如流水，委婉动听。一到晚上，它又会持续不断地发出一种呻吟啜泣声，又转而发出悦耳的乐曲声。植物学家们经过多年的悉心研究，... In Brazil’s lush jungle, Yang Jia, an odd tree in Brazil, has a shrub that the locals call “Mornard.” This woody plant is very strange. During the day it will keep sending a slow song sound, sound like water, euphemism pleasant. In the evening, it will continue to make a moan weeping, and turn to make melodious music. Botanists after years of careful study, ...