Chapter 11: Hermione's Helping Hand

Simplified Chinese (Mandarin: China)
赫敏出手相助 Hèmǐn chū shǒu xiāngzhù	赫敏 Hèmǐn = 'Hermione'. 出手 chū shǒu = 'extend hand'. 相助 xiāngzhù = 'help, assist'	Hermione extends a hand in assistance
Traditional Chinese (Mandarin: Taiwan)
妙麗伸出援手 Miàolì shēnchū yuánshǒu	妙麗 Miàolì = 'Hermione'. 伸出 shēnchū = 'extend, hold out'. 援手 yuánshǒu = 'helping hand'.	Hermione extends a helping hand
Japanese
ハーマイオニーの配慮 Hāmaionii no hairyo	ハーマイオニー Hāmaionii = 'Hermione'. の no = connecting particle 配慮 hairyo = 'consideration, solicitude, care, good offices'.	Hermione's consideration
Vietnamese (Chinese characters show etymology)
Trợ thủ Hermione	trợ thủ (助手) = 'assistant'. Hermione = 'Hermione'.	Hermione the assistant

This refers to Hermione's surreptitiously helping Ron at the Quidditch tryouts.

How is 'helping hand' translated?

'To lend a helping hand' is a standard expression in English. In more straightforward language it just mean's 'help'.

The Chinese translations are fairly straightforward, as is to a lesser extent the Japanese.

The Vietnamese translation changes the title to 'Assistant Hermione'.

(Detailed notes on the chapter can be found at Harry Potter Lexicon)