

Здесь сильное течение, не заплывай далеко.
There's a strong current here, don't swim out too far.
Осторожно, течением может унести в море.
Be careful, the current can carry you out to sea.
Сегодня течение слабое, можно спокойно купаться.
The current is weak today, so you can swim safely.
"течение" is in the lesson "Beach" (Level 17), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.