他们动用坦克、大炮、防空武器和机关枪奇袭了首都。They blitzed the capital with tanks, artillery, anti-aircraft weapons and machine guns.这种玩具机关枪很容易拆卸.This toy machine gun dismantles easily.机关枪 连续不断地发出嘎嘎嘎声.The machine - gun rattled away....
I tried to slip up the stairs unnoticed.我试图趁没人注意溜上楼去。His kindness did not go unnoticed by his staff.他的厚道员工了然于心。She scorns the visible trappings of success, preferring to live unnoticed.她鄙视标志成功的外在之物, 更愿意默默无闻地生活....