All the recorded staple crops grown in western Africa were introduced from elsewhere, beginning, at some unknown date, with rice and yams.

西非所有从某个未知的日期开始记录的主要农作物都是从其他地方引进的，刚开始是种植水稻和山药。

youdao

The Maintain LastAccessed property was introduced in Release 4; it tracks the date when a document was last accessed (that is, the last time a document was read or modified).

Maintain LastAccessed property这个选项是在Release 4中引入的。它跟踪文档最近被访问时的日期(也就是文档最近被读取或修改时的时间)。

youdao

After you introduced yourself, we resumed our date and I asked you again why you'd chosen a drive-in.

在你介绍完自己以后，我们又开始了约会，而我又一次地问你为何选择了一个汽车电影院。

youdao

She said the earliest date it could be introduced after the busy Christmas period was 7 January.

BBC: Crowds at Heathrow Airport

To date, when its introduced the latest and greatest iPhone model Apple has cut the pricing on older models.

FORBES: Apple Needs More Than Just A Hardware Upgrade

To be fair to Labour, the threat to jobs of the social chapter, at least on measures introduced to date, has been exaggerated by the Tories.

ECONOMIST: Labour isn��t thinking