Chinese汉语 term
意大利
Accurate and reliable
Native in: Italian意大利语
Works in: Chinese汉语译成Italian意大利语, Italian意大利语译成Chinese汉语
嫩嫩
should be Taiwanese, text written down from a video ....
Proposed translations
英国
Technical Translator FR/ZH-cn > EN
Native in: English英语 (Variants: US, UK) 
Works in: French法语译成English英语, Chinese汉语译成English英语, English英语
Naive/amateurish
Example translation:"..behaved in a rather silly and naive/amateurish/clumsy manner for the first half of the film"
Ref:
嫩的意思：
① 初生而柔弱：娇嫩、嫩芽。
②（颜色）淡、浅：嫩绿、嫩黄。
③ 幼稚、不老练：稚嫩、嫩手。
⑤ 轻、微：“嫩寒清晓。”
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Note added at 17 hrs (2019-05-12 10:49:33 GMT)
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"Inept" is another possibility
乌克兰
a top-rank. native English-Ukrainian-Rus
Native in: English英语 (Variant: US) , Ukrainian乌克兰语 (Variant: Standard-Ukraine) 
, Russian俄语
Works in: English英语译成Ukrainian乌克兰语, Ukrainian乌克兰语译成English英语, Russian俄语译成English英语, and 3 more.
young & tender
Not matured enough
not seasoned, not sophisticated, not matured
childish
美国
Well-crafted translations
Native in: Chinese汉语 (Variant: Mandarin) , English英语 (Variant: US)
Works in: French法语译成Chinese汉语, Chinese汉语译成English英语, English英语译成Chinese汉语, and 1 more.
young and unexperienced
In certain other context, it could also mean youthful, but not in this one.
毛里求斯
Experienced translator and subtitler
Native in: Chinese汉语 (Variants: Cantonese, Simplified, Mandarin, Traditional)
Works in: English英语译成Chinese汉语, Chinese汉语译成English英语
innocent
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