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去年在一施工现场,我看见有一位工人正在一块块地切割砖,现场除电锯噪声外,就是锯末飞溅,扑得工人满脸砖灰。我上前问道:“怎么不戴上湿口
Last year at a construction site, I saw a worker cutting the bricks in pieces. In addition to the sawing noise, the scene was sawdust spattering and the workers looked ashamed. I went forward and asked: ”Why not wear wet mouth