原级：foothold
1. footholds
1. It's even finding footholds in nations that have a lot more on their plates than picking out color schemes for a new jersey.
2. Slowed but unchecked, the epidemic's relentless march has established footholds in the world's most populous countries.
3. More retailers are scrambling to establish footholds in West China to tap into the region's potential to become a new engine to drive consumption.