【摘 要】
：
1. Since always refers to a continuing period of time from a point in the past until the present. Eg. Ever since you were born you have been troublesome [you
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1. Since always refers to a continuing period of time from a point in the past until the present. Eg. Ever since you were born you have been troublesome [you are still troublesome]. The company has been successful since the new Managing Director was appo
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