Sentence examples similar to difficult to keep under surveillance from inspiring English sources

They are a source of concern for many as they are a difficult to keep under observation.

These are also a source of concern for many as they are a bit difficult to keep under observation.

Narwhals are difficult to keep in captivity.

"It would be difficult to keep that under wraps".

It was difficult to keep going under this assault, and security were nowhere to be seen".

When you have a lot of energy, as I do, it can be difficult to keep things under control.

It's especially difficult to keep the secret product under wraps when the teaser file is named after the product.

Scarce surveillance and tracking capabilities make it difficult to keep track of all marine traffic across the length of Canada's coastline, which totals over 243,000 kilometres [1].

"It's difficult to keep veteran backups.

It's difficult to keep them straight.

Mr. Tobin said it was common for American students to be kept under surveillance by local Russian officials.