常见例句Macular pigment guards against the damage by acting as natural sunglasses, Landrum said. 兰卓姆说,黄斑色素就像天然的太阳镜,保护视力。Scheme A:Landrum & Brown/Yang-Molen A 方案：美国兰德龙布朗与杨莫伦联合体 返回 Landrum