vt. 保持;保留;遵守;阻止;
vi. (食品)保持新;保持健康;
n. 保持,保养;供养,抚养;生活,生计;饲料;牧草;
🗣️ 情景例句
The scary part's leaving home and moving to college.
害怕的是要离开家搬到学校去。
Do one's level best.
尽力而为。
Marine Studio biologists have pointed out that, however intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving.