in the process of (doing something or happening); while (doing)[cedict]
它
tāㄊㄚ
it (used for things)[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]
really and truly[cedict]
aim; clear[cedict]
轨道
guǐ dàoㄍㄨㄟˇ ㄉㄠˋ
orbit; railway or tram line; fig. conventional way of thinking[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]