不够
búgòu
not enough; insufficient
In a story
两个学生的学费,连房租的一半都不够。The two students' fees didn't cover even half the rent.武馆的新学生 · The New Student · HSK 3
Grammar with 不够
X就是了
…就是了 — just …, and that's that
万一…就
万一 — in case / if by any chance
不得不
不得不 — have no choice but to
归根到底
归根到底 — in the final analysis

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