1. The violinist's bow was rosinous and left a rich, warm tone on the strings.

小提琴手的琴弓上含有树脂，使得琴弦发出浓郁而温暖的音色。

2. The pine trees in the forest emitted a rosinous scent, filling the air with a sweet fragrance.

森林里的松树散发出树脂的香味，将空气填满了甜蜜的芳香。