### Chinese: 此次沙特王储访问阿曼期间，双方同意开通了两个海湾邻国间第一条直接陆路通道。
### English: During the Saudi crown prince's visit to Oman, the two sides agreed to open the first direct land route between the two Gulf neighbors.
### Errors: There is a minor error of wrong grammatical register (eg, inappropriately informal pronouns). internal inconsistency (not related to terminology) at "the Saudi crown prince's visit".

### Improved English: During the period when the Crown Prince of Saudi Arabia visited Oman, both parties agreed to open the first direct land road passage between the two neighboring countries in the gulf.