The adverb 日益 "day by day"
The adverb 日益 
indicates an increase in the degree of something.
In a sentence, it is placed before either two-syllable adjectives or verbs.
indicates an increase in the degree of something.
In a sentence, it is placed before either two-syllable adjectives or verbs.Examples
他政权的疲弱性日益显露
The decline of the regime is becoming more evident
tā zhèngquán de píruò xìng rìyì xiǎnlù
他对卷入战争感到日益不安
He is increasingly concerned about his involvement in the war
tā duì juànrù zhànzhēng gǎndào rìyì bù ān
人们的生活状况日益改善
Living conditions are improving every day
rénmen de shēnghuó zhuàngkuàng rìyì gǎishàn