Cavum infraglotticum
[醫] 聲門下腔
?? 詞語組成解析
n. 空腔(如耳腔)
??? 情景例句
When Alexandra arrives,
等Alexandra到達時，
Nothing to be got without pains but poverty.
只有貧困可以不勞而獲得。
I can see why you are having some problems with it.
我明白為什么你用起來會有問題了。