grit your teeth 咬紧牙关，下定决心

bac

grit

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grit¹ / grɪt ; grɪt /
◙noun [U]
1. very small pieces of stone or sand
• 沙砾; 沙粒:
»Make sure both surfaces are free from dust and grit.
  要确保两面都没有灰尘和沙粒。
»The council is responsible for putting grit on icy roads.
  政务委员会负责在结冰的道路上铺撒沙粒。
2. [informal] determination and courage
• 坚毅，勇气;
【SYN】 guts
3. grits, [AmE] a type of grain that is roughly crushed and cooked, and often eaten for breakfast
• 粗碾的谷物〔常于早餐食用〕

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grit²
◙verb [T] gritted, gritting
1. to scatter grit on a frozen road to make it less slippery
• 在〔结冰的道路〕上撒沙砾
2. grit your teeth
a. to use all your determination to continue in spite of difficulties
• 咬紧牙关，下定决心:
»Just grit your teeth and hang on – it'll be over soon.
  咬紧牙关坚持下去吧 — 事情很快会过去的。
b. to bite your teeth together, especially when you are in pain, angry, or under pressure
• 〔尤指在疼痛、生气或有压力时〕咬紧牙关:
»Ben gritted his teeth, hoping Sasha wouldn't notice his fear.
  本咬紧牙关，希望萨莎没有看出他的恐惧。
»'No, that's alright,' she said through gritted teeth.
  “不用，没有关系的。”她咬着牙说。