1

我

wǒ

I me my

2

在

zài

to exist; to be alive (of sb or sth) to be (located) at (used before a verb to indicate an action in progress)

3

他

tā

(third-person singular) (since the early 20th century, usu. male) he; him; his (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)

=4

後面

hòumian

the back; the rear; the last bit behind; near the end; at the back later; afterwards

=4

後面

hòumiàn

later part; later section rear; behind; back