text_1: 在 他们 苦苦 挣扎 时 , 同事 们 一定 没有 注意 到 他们 的 闷闷不乐 , 因为 安全 屋 被 弃用 而且 最终 关门 了 .
  
text_2: and when they were struggling , their melancholies must have gone unnoticed by their colleagues , as the den fell into disuse and was ultimately shut down .
  