当我们遇到困难时 When we encounter difficulties ; When we meet difficulties ; When we stumble and fall
每当我们想到时空序 spatial-temporal order
当我们遇到问题时 When we encounter problems ; We problems
当我们提到农民时 Mentioned when we when farmers
当我们碰到问题时 When we encounter problems
当我们到达车站时 when we got to the station the bus was waiting
当我们遇到难题的时候 When we encountered problems when
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