But he learns there is a "catch" - a tricky condition - to that rule.
但他得知，这条规定存在一种棘手状况。
He learns most quickly in that class.
在那班里他学得最快。
It is important that he learns English well.
学好英语对他来说是重要的。
They said that he learns fast.
他们说他学得很快。
He quickly learns that gravity on Mars is much less than on Earth.
他很快知道了火星上的万有引力比地球上小很多。
He quickly learns that gravity on Mars is much less than on Earth.
他很快知道了火星上的万有引力比地球上小很多。
应用推荐