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解题思路： 翻译句子时,要区分好句子时态. 1. when 当...时候 2. without 介词 后面可以直接跟名词,表示伴随. 3. wood 木材 不可数名词 4. be sure 保证 5. try to do .. 试图做某事 fell 是fall 的过去式
解题过程：
1. When the sun rose, we were fishing. 2. Without light in the room, he opened the box under the bed. 3. There are lots of wood in the yard. 4. I'm sure he will come back today. 5. That man tried to stand up but fell down again.