There are two basic causes of cramping .

有两个基本原因会造成抽筋。

youdao

Conclusion: Qi deficiency, blood stasis and sputum blockage are basic causes of CHD.

结论：气虚，血瘀和痰阻是冠心病心绞痛的根本病因病机。

youdao

One of the basic causes for all the trouble in the world today is that people talk to much and think too little.

当今世界上所有麻烦的根本原因之一是人们说得太多、想得太少。

youdao

The basic causes of the Great Recession began in the Housing Market and the community banks on Main Street.

FORBES: Home Prices Could Drop 50% As The Great Recession Resumes

And taking care of those basic needs causes a steep rise in life expectancy.

FORBES: Pay Death To Go Away

The current disruption in basic foods has several causes, but prominent among these is the undermining of the U.S. dollar as a global currency.

FORBES: Magazine Article