Unless

1.

(in any case other than except, if, if not, supposing that, except) លុះត្រាតែ...ទើប

2.

(បច្ចេកទេស) ប្រសិនបើ..មិន (អត់), លុះត្រាតែ..ទើប

1.

Upon any less condition than (the fact or thing stated in the sentence or clause which follows); if not; supposing that not; if it be not; were it not that; except; as, we shall fail unless we are industrious.