谢灵灵主持，交作业：

汉译英：（有参考答案）

我对我们的选择进行了冷静的军事式分析，权衡利弊（Hint： 请用idiom)。

I've done a dispassionate war-planning style analysis, weighing the pros and cons of our choices.

英译汉：（可以意译）

 Always surround yourself with positive souls and good vibes will just come naturally. Remember that your surroundings will influence your experience so make it a positive one.

混迹正能量的人群里，好事自然多。切记，社交圈会影响你的人生经历，所以要有正能量的社交圈。

Idioms：Achilles heel

His unfounded belief that the Ukrainians would want to return to the fold as Russians is Putin's Achilles heel.