They plan to visit Sanya.他们计划参观三亚
不明白的再问哟,请及时采纳,多谢!您好 那also呢？They also plan to visit Sanya.您好 我觉得应该是thay plan to also visit Sanya 吧动词是 plan, also 放在行为动词前而 to visit 是动词不定式所以： They also plan to visit Sanya.客气