HSK 7-9
暗地里
àndìlǐ名
secretly; inwardly; on the sly
他暗地里准备了一份礼物。
Tā àn dì lǐ zhǔn bèi le yí fèn lǐ wù.
He secretly prepared a gift.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.