thin on the ground
US /θɪn ɑn ðə ɡraʊnd/
UK /θɪn ɑn ðə ɡraʊnd/
1.
稀少, 很少见
present in small numbers or amounts; scarce
:
•
Good mechanics are thin on the ground these days.
现在好的机械师很少见。
•
Opportunities for promotion are thin on the ground in this company.
这家公司的晋升机会很少。