No one came to identify the body and take it away, so it was buried in an unmarked burial mound.
他的尸体没人认领，只好埋入了乱葬岗子。

Given all this, how do scientists explain the fact that robins eggs are an eyecatching, unmarked blue
终上所述, 科学家如何解释知更鸟蛋是耀眼的纯蓝色呢？

With regard to the thematic structure, unmarked themes between the two corpora statistically differ from each other.
在主位选择方面, 非标志主位在数量上存在显著性差异。

Soviet soldiers erected a tent over the unmarked grave and three KGB officers dug up the ammunition boxes containing the charred skeletons.
三名克格勃军官挖出了装着希特勒等人尸骨的弹药箱。