<span style="color: rgb(43, 43, 43); font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; white-space: pre-wrap;">ARML-三角函数</span>
