obscure

1. ADJ If something or someone is obscure, they are unknown, or are known by only a few people. 鮮為人知的

The origin of the custom is obscure. 該習(xí)俗的起源鮮為人知。

2. ADJ Something that is obscure is difficult to understand or deal with, usually because it involves so many parts or details. 復(fù)雜難懂的; 難處理的

The contracts are written in obscure language. 那些合同是用復(fù)雜難懂的語言寫的。

3. V-T If one thing obscures another, it prevents it from being seen or heard properly. 遮掩

Trees obscured his vision; he couldn't see much of the square's southern half. 樹木遮住了他的視線，他不怎么看得見廣場(chǎng)南半部。

4. V-T To obscure something means to make it difficult to understand. 使…難懂

...the jargon that frequently obscures educational writing. …常使教學(xué)行文變得復(fù)雜難懂的術(shù)語。