?加油的英文翻譯為"keep going"或者"go for it"，意為繼續努力、堅持下去。

用法：

"keep going"和"go for it"都是鼓勵他人繼續努力、不放棄的表達方式。可以用于各種場合，考試前、工作中、運動比賽中等。

例句：

1. Keep going, you're almost there! (加油，你就快成功了！)

2. Don't give up, just go for it! (不要放棄，繼續加油！)

3. She kept going despite all the obstacles. (盡管遇到了很多困難，她仍然堅持不懈。)

4. Go for it, you have nothing to lose! (大膽去做，你沒有什么好失去的！)

5. Keep going until you reach your goal. (一直加油直到達到你的目標。)

同義詞及用法：

1. Keep pushing: 繼續努力，堅持下去。

2. Don't give up: 不要放棄。

3. Hang in there: 堅持住。

4. Never say die: 永不言敗。

5. Stay strong: 保持堅強。