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be sure of sth,be sure to do sth分别是什么意思？360问答
be sure of sth确定某事be sure to do sth一定要做某事be sure of sth确定某事be sur 温川台 e to do sth一定要做 某事
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be sure to watch
解释：be sure to watch 一定要观看
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Be sure to write your checks numbers on this sheet and keep them separately.是什么意思
是什么意思,Be sure to write your checks numbers on this sheet and keep them separately.的真人发音,权威用法和精选例句等。
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Be sure to insulate any loose unconnected wires with electrical tape for safety.是什么意思
解释：为了安全，务必用电工胶带绝缘任何未连接的电线。
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