Cannot take one's eyes off (something); must keep watching—used when something is very engrossing or requires constant attention for safety.
このドラマは展開が速くて、最後まで目が離せなかった。
This drama moves fast—I couldn't take my eyes off it until the end.
赤ちゃんがまだ小さいので、目が離せない。
The baby is still small, so I can't take my eyes off him/her.
炎が大きくなって危険だから、火元から目が離せない。
The flames grew and it became dangerous, so we couldn't take our eyes off the source of the fire.
ライブは演出が派手で、観客は目が離せない様子だった。
The concert's production was flashy, and the audience couldn't take their eyes off it.