When selling products that will take 40 years to deliver, however, even the most cautious navigators can be holed by unchartered reefs.
然而，当出售需要运输40年的产品之时，就算是最为小心谨慎的航海家也可能栽在未知的礁石上。
3
Indeed, we are moving through unchartered territory and we need new ways of understanding the shifting dynamics of the international landscape and our own bilateral relationship.