let /have /make åä¸å¾ç¨ä¸å¸¦toçå¨è¯ä¸å®æ¶ã
helpåé¢å¯ä»¥ç¨ ï¼ä¹å¯ä»¥ä¸ç¨ã
æå®å¨è¯see/watch/observe/hear sb do sth,æ¯æçè§/çå°/è§å¯å°/å¬å° æ人åæäºï¼æ¯æåè¿ä¸ªäºçå
¨è¿ç¨ï¼èsee/watch/observe/hear sb doing sth,æ¯æï¼çå°æ人æ£å¨åæäºã
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I let my mother help me wash my clothes.æ让å¦å¦å¸®ææ´è¡£æã
I have the teacher explain the question for me.æ让èå¸ç»æ解éè¿ä¸ªé®é¢ã
I make the worker finish her job before 12:00. æ让è¿ä¸ªå·¥äººå¨12ç¹ä¹åå®æå·¥ä½ã
I hear the boy sing a beautiful song. æå¬è§è¿ä¸ªç·å©å±äºä¸é¦å¥½å¬çæã
I hear the boy singing a beautiful song. æå¬å°è¿ä¸ªç·å©æ£å¨å±æã
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