1. On the football field every player is vying for the ball.2. Our manager has resigned. So his position is up for grabs.3. The national championship title of badminton is up for grabs.
 vie for something fight for something something is up for grabsvie for something 很常用，可用在球隊搶球，待業者搶工作等等，up for grabs 指某東西可以被搶或被爭取。
An aborigine, as the name sugests, refers to one of the original or earliest known inhabitants of a country or region.