1. They unearthed a box buried under a tree.
    他们挖出了一个埋在树下的盒子。

1. 发掘：unearned 不劳而获的 | unearth 发掘 | unearthliness 神秘

2. 从地下掘出：untomb 掘墓 | unearth 从地下掘出 | unhouse 赶出家去

3. 出土：site, venue, locale, seat 场所 | unearth 出土 | Taoist temple 道观

1. 发现；揭露
    If someone unearths facts or evidence about something bad, they discover them with difficulty, usually because they were being kept secret or were being lied about.

    e.g. Researchers have unearthed documents indicating her responsibility for the forced adoption of children...
           调查人员已经发现了证明她对强制收养儿童事件负有责任的文件。
    e.g. The frauds have been unearthed by investigators working for the Camden and Islington Health Authority.
           这些欺诈行为已被卡姆登和伊斯灵顿卫生局的调查人员揭露了出来。

2. 发掘，挖掘（埋藏物）
    If someone unearths something that is buried, they find it by digging in the ground.

    e.g. Fossil hunters have unearthed the bones of an elephant believed to be 500,000 years old.
           化石搜集者们发掘出了一具大象骨骼，据信距今已有50万年。
    e.g. ...saying that the treasure had been unearthed on his property...
           称宝藏是在他家地里挖掘出来的

3. 找到，发现（隐藏或丢失之物）
    If you say that someone has unearthed something, you mean that they have found it after it had been hidden or lost for some time.

    e.g. From somewhere, he had unearthed a black silk suit...
           他不知从哪里找来了一套黑色的丝绸衣服。
    e.g. Today I unearthed a copy of ''90 Minutes'' and had a chuckle at your article.
           今天我找到了一期《90分钟》杂志，读了你的文章咯咯笑了半天。

1. recover through digging

    e.g. Schliemann excavated Troy
           excavate gold

    Synonym: excavate

2. bring to light

    e.g. The CIA unearthed a plot to kill the President