1

我不知道

wǒbùzhīdào

I don't know.

2

他們

tāmen

they; them

3

是否

shìfǒu

whether (or not) if is or isn't

=4

會

huì

can; to have the skill; to know how to to be likely to; to be sure to to meet; to get together meeting; gathering (suffix) union; group; association (bound form) a moment (Taiwan pr. huǐ)

=4

會

kuài

(bound form) to reckon accounts

=4

會

kuò

only used in 會撮／会撮

5

離婚

líhūn

to divorce