at his need

To avoid such a scenario, Lunt says Angel's project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo-engineering altogether.

为了避免这种情况，伦特说，安吉尔的项目必须以一半的实力来运作。所有情况都强化了他的观点，即最好的选择是完全避免进行地理工程。

To arrive in time to open his tiny store at 8:30, he need to leave our apartment at 6. After all, he had to take a bus and then the subway.

为了能在八点半准时开他的小店，他需要在6点离开公寓。毕竟，他得先坐公共汽车，然后再乘地铁。

Johnson is the cult hero of PC puzzle gaming, and his feverish fans need him at his keyboard.

约翰逊是电脑益智游戏备受崇拜的英雄，他的狂热粉丝需要他出现在电脑前。