Correct

起先

/ qǐxiān / 
Strokes

Definition

at first/in the beginning

Example

As an Adverb

originally; initially; at first; in the beginning; at the outset; at the start

1
Qǐxiān
起先
wǒ
我
yǒuxiē
有些
xiǎng
想
bùtōng
不通
  
,
hòulái
后来
cái
才
xiǎngtōng
想通
le
了
  
。

At first I didn't understand, but I've come round to the idea now.

2
Qǐxiān
起先
  
,
wǒmen
我们
duì
对
cǐ
此
yīwúsuǒzhī
一无所知
  
。

I knew nothing about it in the beginning.