抖森仿读E07 | 什么，again有两种读法？

The mower stalled, twice; kneeling, I found   
A hedgehog jammed up against the blades,   
Killed. It had been in the long grass.
割草机抛锚了两次；我跪下发现 ，
一只刺猬挤进了里面，卡住了刀片。
它死了。它曾在高高的草丛里。

单词提示
mower ['məʊə] 割草机  
stall [stɔːl] 停止运转
hedgehog ['hedʒhɒɡ] 刺猬
blade  [bleɪd] 刀锋；刀片
again [əˈɡen, əˈɡeɪn] 
   1988年对英国人的一次调查显示，80%的英国人念[əˈɡen]，20%念[əˈɡeɪn]
   1993年对美国人的一次调查显示，97%的美国人念[əˈɡen]，3%念[əˈɡeɪn]
against [əˈɡenst, əˈɡeɪnst]

连读爆破
A hedgehog jammed~ up~ agains(t) the blades
It had been in the long grass

语音语调
The mower stalled↘, twice↘; kneeling∨, I found→   
A hedgehog∨ jammed up against the blades↘,   
Killed↘. It had been in the long→ grass↘.