1. His telescopic observations are justly immortal;
    他的望远镜的观察结果当然是不朽的.

2. His telescopic observations are justly immortal;
    他的望远镜的观察结果当然是不朽的.

3. His telescopic observations are justly immortal;
    他的望远镜的观察结果当然是不朽的.

4. His telescopic observations are justly immortal;
    伽利略用望远镜所作的观察确实是不朽的，