åä¸ï¼ä»ä¸å¾ä¸ï¼ upward; up ï¼æ好çæ¹ååå±ï¼make progress
ä¿æï¼ç»´æ; 使ä¸æ¶å¤±æåå¼±ï¼ keep; hold; retain; maintain; preserve
åä¸downward; down
åå·¦aleft; towards the left turn left
åå³turn right
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