He always took time to explain things to me clearly whenever I couldn't understand anything.
无论何时只要是我没听懂的，他总是花时间给我解释清楚。
He always took the time to explain things to me clearly whenever I couldn't understand anything.
每当我不能理解有些事情时，他总是花费甘间给我解释清楚。
Recently some American scientists have found the reason which can clearly explain the disappearance of all different kinds of living things on the earth.
最近，美国科学家发现了能够解释清楚地球上各种生物灭绝的原因。
Recently some American scientists have found the reason which can clearly explain the disappearance of all different kinds of living things on the earth.
最近，美国科学家发现了能够解释清楚地球上各种生物灭绝的原因。
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