Correct

伊始

/ yīshǐ / 
Strokes

Definition

outset/beginning

Example

As a Noun

beginning

1
Xīn
新
zhōngguó
中国
chénglì
成立
yīshǐ
伊始

right after the founding of New China

2
Zì
自
jīn
今
yīshǐ
伊始

from now on

3
Xīnniányīshǐ
新年伊始

beginning of a new year

4
Jiùzhí
就职
yīshǐ
伊始

upon assuming office