sheer  
 adjective uk/ʃɪər/ us/ʃɪr/
  (COMPLETE)      
 C1 [ before noun ]完全的,彻底的 
used to emphasize how very great, important, or powerful a quality or feeling is; nothing except
  The suggestion is sheer nonsense. 这个建议纯粹是胡言乱语。 
 His success was due to sheer willpower/determination. 他的成功全靠自己的意志力/决心。 
 It was sheer coincidence that we met. 我们的相遇纯属巧合。 
 - More examples
 - It was sheer chance that we met.
 - I've got where I am through sheer hard work.
 - My time in prison was sheer hell.
 - Words could not convey the sheer terror of the experience.
 - People danced in the streets out of sheer joy.
 
  (STEEP)      
 C2 陡峭的;近乎垂直的
extremely steep; almost vertical
  a sheer mountain side 陡峭的山坡 
 a sheer drop of 100 metres 100米的垂直落差 
   (THIN)      
 (织物等)极薄的,透明的
Sheer clothing or material is so thin, light, and delicate that you can see through it.
  sheer nylon tights 透明尼龙连裤袜 
 She wore a dress of the sheerest silk. 她穿了一条薄如蝉翼的丝绸连衣裙。 
 sheer       
verb [ I usually + adv/prep ] uk/ʃɪər/ us/ʃɪr/
 突然变向
to change direction suddenly
  I thought the boats were going to collide, but one sheered off/away at the last second. 我以为两只小船就要撞上了,但在最后关头,其中一只突然调转方向避开了。