veiled

含蓄的威胁

a threat that is not expressed directly

非直接表达的威胁

含蓄的警告

a warning that is not expressed directly

间接或隐藏的警告

含蓄的提及

a reference that is made indirectly

间接的提及

an accusation that is not expressed directly

unfriendliness or opposition that is not expressed directly

an unpleasant hint or suggestion that is not expressed directly

an indirect or passing reference