You need a licence to fish in this river.
你在這條河里釣魚要有許可證。
We enjoyed a day's fishing by the river.
我們在河邊享受了一天垂釣之樂。
In the wild, this fish can reach a weight of 5lbs.
這種魚在自然生存環境中可以長到5磅重。
Stand the fish tank on a firm base.
把魚缸放在牢固的基座上。
The fish return to the river as adults in order to breed.
這種魚長成以后回到河中產卵。