If only sometimes, under what conditions?

如果只是有时工作，那么是在什么情况下？

youdao

Well... only sometimes, and only in certain situations.

好吧…只在某些时侯，而且只在某些特定情况下。

youdao

Failed states always cause misery, but only sometimes are they a global threat.

失败的国家总会带来不幸，然而这些国家只有在某些时候才会产生世界范围的威胁。

youdao

The old ones were well toasted, but the new ones are only sometimes crisp.

NEWYORKER: Francesca

Failed states always cause misery, but only sometimes are they a global threat.

ECONOMIST: Failed states

This is typical m.0. for PETA, especially when it comes to designers who use fur only sometimes, and then only for trim.

FORBES: Dear PETA: Screaming Rabbits Are Not the Answer