halfway

英 [hɑːf'weɪ; 'hɑːfweɪ] 美[,hæf'we]

• adv. 到一半；在中途
• adj. 中途的；不彻底的

1. equally distant from the extremes

2. at a point midway between two extremes;

"at the halfway mark"

3. including only half or a portion;

"halfway measures"