Interest payments and principal security appear adequate for the present but certain protective elements may be lacking or may be characteristically unreliable over any great length of time.

目前，看来仍足以支付利息与保障本金，但是若干保持因素可能缺乏，或经长时间以后，可能无法信赖。

youdao

Their account appears to be based on unreliable popularisations, and they cannot even get right the number of elements in Aristotle's universe (it is five, not four).

ECONOMIST: Understanding the universe