hel·o·s英'heləʊ美'heləʊCOCA²⁰⁸⁷⁶⁵ 基本例句 n.直升机¹⁰⁰名词复数helos Military researchers are looking to combine an acoustic gunshot detector with a dazzling laser that will startle shooters who take aim at American helos. 军事研究员们正在试图将声学枪响探测器与一条耀眼的激光相结合，激光将惊吓到将美国直升机作为目标的射手。 yeeyan