Her calls became less frequent.

她打电话的次数减少了。

《牛津词典》

When mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur.

当老鼠同时服用吗啡和新型药物纳曲酮时，虽然仍会发生血液中毒，但发生的频率大大降低。

youdao

If you and I parachuted back to Fortune 500 companies in 1990, we would see much less frequent use of terms like journey, mission, passion.

如果你和我空降回到1990年的《财富》500强公司，我们很少会看到有人使用旅程、使命、激情这样的词汇。

youdao

Police in India announce such arrests from time to time, but convictions of such suspects are less frequent.

VOA: standard.2009.08.07

Young kids, soccer-coaching and work have made our Delaware trips much, much less frequent.

FORBES: Catskills Fly Fishing Book

In 1915, however, they became less frequent, and in July he cancelled them altogether.

BBC: Woodrow Wilson's odd early press conferences

It is this document Harrow Estates wants to change to allow less frequent water testing.

BBC: Tests for contaminated water at Hauxton could be cut