纪念碑: monument...
防火墙: firewall...
惊: to startle, to be frightened, to be scared, alarm...
踩: to step on, to tread, to stamp, to press a pedal, to pedal (a bike), (online) to downvote...
军队: army, troops...
下降: to decline, to drop, to fall, to go down, to decrease...
特快: express (train, delivery etc)...
中华: China (alternate formal name)...
稳妥: dependable...
策略: strategy, tactics, crafty, adroit...