Ehh
abbr. 食管裂孔疝（esophageal hiatal hernia）；高壓對光柵行幅（場幅）的影響
??? 情景例句
He's gone for the day.
他整天都不在。
I said, Do you need any help?
我是說:你需要幫忙嗎？"
Did the material work out well for you?
那些材料進行的順利嗎？