为自己加油

Try to translate the following into Chinese .8.Hitler’s broken promises included an attack on Poland, which Britain and France were bound by treaty to defend. But neither of them was armed in readiness for the Second World War, which began in September 1939.

希特勒背信弃义，进攻波兰；英法两国与波兰原签有条约，有义务保卫波兰的。但1939年9月第二次世界大战爆发时，英法两国都没有做好准备。