0 Old HSK word(s):

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

要 necessary, essential / necessity

塞 stop up, block, seal, cork / pass, frontier / fortress

Hsk Characters:

HSK -Characters and beyond:

from: Universala Vortaro, Zamenhof

Gb	Big5	Eng	Rad	Mega	Triple	Multilingual

Festung (S) [yi3 yao4 sai1 fang2 shou3]

以要塞防守

Festung (S) [zhu2 yao4 sai1]

Festung (S, Gesch) [yao4 sai4]

要塞

Hochburg (S, Gesch) [yao4 sai4 bao3 lei3 zhong1 xin1 da4 ben3 ying2]

要塞堡垒中心大本营