She couldn't keep back her tears at the news.
聽到那消息，她忍不住掉下了眼淚。
At the moment she just couldn't keep back her tears.
這時她就是沒法忍住自己的眼淚。
In vain I tried to keep back my tears.
我怎么也忍不住我的眼淚。
I fought to keep back my tears.
我努力控制住淚水。
Hydraulic servo tuned magnetron I fought to keep back my tears.
水力伺服調諧磁控管我努力控制住淚水。