constrain
vt. 抑制，强迫
eg. Cold weather constrained the plant's growth.
寒冷的天气抑制了植物的生长。

bockey
n. 曲棍球；冰球
eg. John played goal for the hockey team.
约翰在那个曲棍队当守门员。

at stake
phr. 在危急关头，在危险中
eg. Take care how you answer，for your life and salvation are at stake on it.
回答的时候你要慎重，因为这关系到你的生死存亡。

coda
n. 结尾部分
eg. I wrote a different kind of epilogue and then wrote the coda.
我写下了一个不同的结尾，接着写下了终结句。