1. The basement of the old house was dark and sunless.
这座旧房子的地下室阴暗无光。

2. The rain poured down, making the day feel even more sunless.
雨水倾泻而下，使得这一天更加黯淡无光。

3. She preferred sunny destinations for vacation and avoided sunless places.
她更喜欢阳光明媚的度假地，避免选择没有阳光的地方。