我们的游船旁，不时有从阳朔逆水而来的游船穿过，彼此虽为陌路，站在三层大阳台上观景的人们仍互相频频招手致意。
B-Person I-Person O B-Thing I-Thing B-Location O O O O O B-Location I-Location O O O O O B-Thing I-Thing O O O O O O O O O O O O B-Metric I-Metric B-Location I-Location I-Location I-Location O O O B-Person I-Person O O O O O B-Person I-Person O O O