sumatranssuːˈmɑːtrənzCOCA³¹⁵¹¹¹⁺⁴ 基本例句 🌏苏门答腊原型sumatran的复数 Sumatrans have been evacuated from a four- mile radius around the volcano, and aid workers have distributed8,500 face masks to protect people from the fumes. 苏门答腊岛的居民已经疏散至距离火山区域4英里的安全地点，救援人员向其发放了8500个防毒面具以避免烟尘伤害。 yeeyan