căn cứ 
base like: Basis → →
die Basis ☊ 
cơ sở, cơ bản, nền tảng ☊ 
☊ Basis ☊ 基础 ☊ jī chǔ After the attack, they returned to base. ☊ base ☊
I spend a lot of time in Britain but Paris is still my base. ☊ base ☊
You can use our apartment as a base in New York. ☊ base ☊
His arguments have a sound economic base. ☊ base ☊
a pain at the base of the spine ☊ base ☊
on a regular/permanent/part-time/temporary basis ☊ basis ☊
on a daily/day-to-day/weekly basis ☊ basis ☊
In this job you work on commission (= are paid according to the amount you sell). ☊ commission ☊
The army was cut off from its base. ☊ cut sb/sth off (from sb/sth) ☊
$100 will get you the basic model. ☊ get ☊
You can get the basic model for $100. ☊ get ☊
I can just about get by in German (= I can speak basic German). ☊ get by (on/in/with sth) ☊
The charity is run on a purely voluntary basis. ☊ purely ☊
Our relationship was now on a more secure footing. ☊ secure ☊