try ______ 试验,尝试;考验
Fascinated by the night sky, he __________ (购买)his telescope in the 1880s.
The athlete came to the point of considering an early r __________.
Many people have doubts whether the government properly keeps __________ (踪迹)of senior citizens' whereabouts.
If you're interested in competitive __________ (田径运动),then take a look at what your local clubs offer.
The guests were deeply impressed with the girl's __________ (优雅的)manners.