every time; whenever

1. 捕來且牢固地拴在樹上的象，每當有人走近時就會猛烈前沖和發(fā)出尖叫。
   The captive elephant, still roped to a tree, plunges and screams every time a man approaches.
2. 每當工人團結起來時，他們就顯示出力量并取得勝利。
   Every time the workers stuck together they showed their strength and won.
3. 每當他作為一名演員再一次得獎時，他的聲望也就提高了。
   His stock as an actor rises every time he wins another award.
4. 每當我聽到我們國歌的演奏都很激動。
   I get excited whenever I hear the playing of our national anthem.

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當的英語翻譯：