Which language
should Toni use?
Not the language you’re learning — the one your hints, feedback and translations arrive in.
The Hán–Việt scaffold.
中国
zhōngguó
Trung Quốc
China
About 60% of Vietnamese vocabulary is Sino-Vietnamese — so thousands of Mandarin words arrive half-known. You are recognising them, not memorising them.
越南
Yuènán
Việt Nam
大学
dàxué
Đại học
电话
diànhuà
Điện thoại
Choosing English keeps everything else identical — you simply won’t see the Vietnamese reading. You can switch in Profile at any time.