视频对话：
Of course.
当然。
As he lost consciousness, he fell forward.
他失去了意识，就向前摔去。
Fracturing his chin.
撞碎了下巴。
Wait a second. He was a big guy.
等一下，他挺壮的。
本期学习词汇：
fracture
vt.& vi.（使）折断，破碎
n.破裂，断裂；骨折
例句：
1. You've fractured a rib, maybe more than one.
你的一根肋骨断了，可能不止一根。
2. One strut had fractured and been crudely repaired in several places...
一根撑木出现了裂痕，有几处已进行了粗略的修补。
3. I'm afraid there is a blunt-force fracture.
我恐怕那里有钝器所导致的骨折。
4. It might be a society that could fracture along class lines.
它可能成为一个阶级分化的社会。
5. At least one-third of all women over ninety have sustained a hip fracture.
超过90岁的所有女性中至少有1/3已经出现髋骨骨折。