this; these; (commonly pronounced zhei4 before a classifier, esp. in Beijing)[cedict]
在
zàiㄗㄞˋ
(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
还是
hái shìㄏㄞˊ ㄕˋ
or; still; nevertheless[cedict]
当
dāngㄉㄤ
dàngㄉㄤˋ
to be; to act as; manage; withstand; when; during; ought; should; match equally; equal; same; obstruct; just at (a time or place); on the spot; right; just at[cedict]
at or in the very same...; to pawn; suitable; adequate; fitting; proper; replace; represent[cedict]