有人故意删除文件,显然是个破坏者。
Someone intentionally deleted the files—clearly a ___saboteur.
工厂的损坏是由破坏分子篡改机器造成的。
The damage to the factory was caused by ___saboteurs who tampered with the machinery.
警方逮捕了一名试图破坏工厂设备的破坏者。
The police arrested a ___saboteur who tried to damage the factory equipment.