- Is the water polluted at source or further downstream?
- Is your salary taxed at source(= by your employer)?
- Is the water polluted at source?
- Oil at source might rise 20 % in price.
- Since much of the construction waste delivered to landfills could be reused,contractors are encouraged to segregate and sort their waste at source before disposal.
- My income is taxed at source,ie Tax is deducted from it before it is paid to me.
- stoppage at source 源头征税