1 . 酸涩的
The affection between the man and woman was compared to a dill pickle(腌黄瓜) .Dill pickle tastes bitter(苦的) and acerb(酸涩的),so it reflected.
2 . 尖锐的
简明英汉词汇 ... acerbfruit || 酸涩的水果 acerb|| 酸涩的, 尖锐的, 刻薄的 acerbate || 使发怒, 使烦恼恼怒的.
3 . 收敛性的
acerathere 无角犀, acerb收敛性的, aceratosis 角化不全