The phrase "able to block their" is correct and usable in written English.
It can be used in contexts where someone or something has the capability to prevent or obstruct actions or access related to a group or individual.
Example: "The new software is able to block their access to certain websites to ensure productivity."
Alternatives: "capable of preventing their" or "able to restrict their".
Only one picture will be allowed and users will be able to block those outside their network from seeing it, as well as being able to block photos from other users.
Henceforth, the agency said, only aircraft owners who could provide "written certification of a valid security threat" would be able to block public release of their data.
According to the Hollywood Reporter, artists would be able to block cover versions of their hits being made commercially available by other performers due to particular provisions for online exploitation.
And when Trump sends up his nominees for the vacant lower-court positions, the minority Democrats will not be able to block a vote on their confirmation.
Figure 1C shows that both mutant toxins were able to block the action of their corresponding wildtype toxin showing a DN phenotype since inhibition was observed at sub-stoichiometric ratios.
In Rhode Island, which legalized medical marijuana in 2007 but changed its law this year to allow nonprofit producers, it remains unclear whether towns will be able to block dispensaries from opening within their borders, or whether growers will be able to deliver to patients.
Plus, both public and private account holders will be able to block accounts from commenting on their posts.
ISPs were able to block the pages in a trice – all their traffic flows through devices that monitor for prohibited destinations.
Surgeons will be able to block the planned publication of data on their individual performance, it has emerged.
With their support, Japan was able to block attempts by Australia and New Zealand to establish a whale sanctuary in the South Pacific.
