| gen. |
occasionally; here and there; once and again; once in a way; once in a while; not very frequently (ART Vancouver); once in a rare while (Liv Bliss); once in a great while (SirReal); rarely; seldom; rarely; in rare events (The different speeds of the planets mean that, on occasion, several of them can be roughly lined up on the same side of the Sun. From Earth, if the orbits line up just right, we can see multiple planets in our night sky at the same time. In rare events, all the planets will line up such that they all appear in our night sky together along the ecliptic, the path traced by the Sun. (bbc.com) ART Vancouver) |
