It takes a lot more skill (and probably a measure of luck) to do these things without source code.

在没有来源程式码时，做这些事就需要有更多的技巧（可能还需要有一些运气）。

youdao

With luck the reporters would follow up on the scuttlebutt without mentioning its source, assuring themselves that they had got the story through their "contacts".

如果幸运的话，记者会跟进这一线索但不会提到消息来源，让自己相信是通过他们自己的“线人”获得线索的。

youdao

The second part of the point source of the term for sending good luck and allusions.

第二部分点出师造化一词的来源及其典故。

youdao

Luck, both good and bad, plays a part in every life--though people tend to imagine that the good luck is a consequence of personal merit, while the bad luck springs from some malevolent outside source.

FORBES: Magazine Article

But then it all changed, and from an unexpected source, as Carragher tried his luck from the edge of the box and while his luck was good, Pogatez's was not and the ball flew in off the unfortunate defender.

BBC: Liverpool 2-1 Middlesbrough

Moreover, building better machines is something that we have had ton of luck at over the past several hundred years and is a more reliable source of growth than finding new easy-to-get deposits of oil and gas or decreasing the long run volatility in energy prices.

FORBES: Will Natural Gas Stay Cheap Enough To Replace Coal And Lower US Carbon Emissions