to examine; experiment ☊ 
bài kiểm tra sự thử nghiệm xét nghiệm kiểm tra 
test like: xét nghiệm → →
die Vorsorgeuntersuchung ☊ 
xét nghiệm phòng ngừa bệnh ☊ 
☊ Extensive tests have been carried out on the patient. ☊ carry sth out ☊
Her pregnancy test was negative. ☊ negative ☊
It's time to give serious consideration to this matter. ☊ serious ☊
Headaches in young children should always be taken seriously. ☊ take sb/sth seriously ☊
laboratory tests ☊ test ☊
When can I get my test results? ☊ test ☊
The hospital is doing some tests. ☊ test ☊