One day, it was snowing, but not very heavily.

有一天，下着雪，但不是很大。

youdao

Sometimes it snows, but not very heavily.

有时候下雪，但不太大。

youdao

The ship is heavily armed with laser cannons, but it is apparently not very well armoured.

这艘船装备了大量激光炮，但显然装甲不是很好。

youdao

So, what it means then is that the optimal portfolio should not be the one I show there, but should be one that's very heavily into stocks.

他所想提出的观点是,最佳投资组合并不是我在这讲的那个，而是把大量资金都投资到股票市场中。

耶鲁公开课 - 金融市场课程节选