从特内里费岛到大加那利岛有定期的渡轮航行。

There are regular ferry ___crossings from Tenerife to Gran Canaria.

这次航行大约需要50分钟。

The ___crossing takes about 50 minutes.

这次跨大西洋的航行平稳而愉快。

The transatlantic ___crossing was smooth and enjoyable.