spontaneous (a) (behavior) | espontâneo (a) (behavior) |
spontaneous (a) (behavior) | natural (a) (behavior) |
spontaneous (a) (general) | espontâneo (a) (general) |
spontaneous combustion | combustão espontânea |
spontaneous reaction | reação natural |
spontaneous reaction | reação espontânea |
spontaneous reaction | reação instintiva |