Type 1 Diabetes results from the body not having enough insulin.

1型糖尿病是由于体内没有足够的胰岛素。

youdao

He misses not having enough books because he's an avid reader.

他遗憾没有足够的书，因为他是一个热爱读书的人。

《柯林斯英汉双解大词典》

Over time, not having enough sleep—especially deep and REM sleep—can cause one to become sick more easily.

随着时间的推移，睡眠不足会让人更加容易生病，尤其是深度睡眠和快速眼动睡眠时间不足时。

youdao

Having established groups hire composers to write new music is important, but that is not enough.

VOA: special.2010.07.12

So,having legal abortion helps." But Dr.Sheriar says it is not enough to just give women the right to a safe abortion.

VOA: standard.2010.06.24

Besides not having enough time to prepare for meetings, current executives are naturally sympathetic to other executives.

FORBES: Why Current Executives Shouldn't Be Directors

People would hoard as much water as they could for fear of not having enough in the future.

FORBES: Fact and Comment

"Where the mistakes were was in not having enough policy instruments to deal with the imbalance, " he said.

BBC: Sir Mervyn King rejects criticism for crisis