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他減慢速度，向左急轉(zhuǎn)。He reduced speed and turned sharp left.河水在平坦的河床上減慢了流速.The river slows on the flat bottom.機器逐漸減慢了轉(zhuǎn)速,終于停住了.The machine slowed down and stopped....

“減慢”的反義詞：加快。...

“減慢”的英語可以翻譯為：[計] slower ...