/ˈvɜ:tɪkl ||; ˈvɝtɪkḷ/adj going straight up at an angle of 90° from the ground 垂直的；直立的:
a vertical line 垂直线The cliff was almost vertical. 这个悬崖几乎是垂直的。 ☞Compare horizontal and perpendicular. 与horizontal及perpendicular比较。 ☞picture at line 见line插图 ➔vertically /-kli ||; -klɪ/ adv