edge into短语¹³¹⁶²⁰⁺³ 基本例句 进入 “ For a woman who already has a poor iron status, any additional iron loss from exercise may be enough to tip her over the edge into a more serious deficiency, ” notes the expert. 他提醒说，“对于那些已经缺铁的女性，任何因锻炼而产生的更多铁离子流失都足以导致体内缺铁状况的恶化。” jukuu