perilous 的意思是危险的，险恶的。 Myanmar authorities detained 173 ethnic Rohingya aboard a boat off the southern coast, amid signs that more members of the Muslim minority group are making perilous sea voyages to escape persecution. 缅甸当局在其南部近海的一艘船上拘捕了173名罗兴亚人，有迹象表明，更多的穆斯林少数族裔为了逃避迫害而走上危险的海上逃亡之路。