国家有义务保护本国公民不受外敌侵犯。
The state has a duty to protect its citizens against external enemies.
与东罗马帝国相比，西罗马帝国有很多劣势，包括外敌更多、物质资源和人力资源更少。
Compared to the Eastern Empire, the Western Empire had many disadvantages, including more foreign enemies and fewer material and human resources.
风、寒、暑、湿、燥等“外敌”会致病，而金、木、水、火、土的五行不调也会让人生病。
'Invaders' such as wind, cold, heat, dampness, dryness factor into illness, so can five phases known as fire, earth, metal, water and wood.
在那些石头里，我仿佛看见了战鼓擂擂、旌旗猎猎，勇敢的寨民们举起铁戟抵抗外敌，鲜血染红了他们的衣衫，渗入青石城墙里；
In those stones I saw thundering war drums, fluttering flags, and brave villagers raising iron halberds against invaders, their blood staining their clothing and seeping into the granite rampart.
这个国家从未被外敌征服过。
边境沿线均构筑了堡垒，以防外敌进攻。
A line of forts was built along the border, to protect the country against attack.
此外，克兰诺格也比较便于抵御外敌进攻。
他们的职责是保卫国家不受国内外敌人的侵害。
Their duty is to defend their country against both domestic and foreign enemies' attack.
当时在北方疆界上曾有一些砖石建造的城墙以抵御外敌。
There had been a number of walls built of brick and stone along the northern border to keep the enemies beyond.
中国的长城是一个非常长的人造城墙为了防止外敌入侵。
The Great wall of China is an immensely long man-made wall that was built to keep out invaders.
一旦有“外敌”入侵，这些蛋白质就会发出信号，调集白血球进行防御。
Once a "foreign" invasion, these proteins will send a signal to the mobilization of white blood cell defense.
只有这样做，才能真正地巩固国内和平，停止国内的武装敌对，增强国内的团结，以便举国一致抗御外敌。
Only thus can internal peace be truly consolidated internal armed hostilities ended and internal unity strengthened enabling the whole nation to unite and resist the foreign foe.
只有这样做，才能真正地巩固国内和平，停止国内的武装敌对，增强国内的团结，以便举国一致抗御外敌。
Only thus can internal peace be truly consolidated internal armed hostilities ended and internal unity strengthened enabling the whole nation to unite and resist the foreign foe.
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