[00:00.257]feeble
[00:01.165]The old woman is too feeble to do her own shopping.
[00:06.332]flap
[00:08.226]Everything was working smoothly, there was no flap.
[00:12.647]flip
[00:13.494]She flipped through the pages of a magazine, not really concentrating on them.
[00:20.464]fragile
[00:21.625]This old glass dish is very fragile.
[00:26.367]friction
[00:28.362]Friction between two sticks can create a fire.
[00:32.903]fuse
[00:34.572]Their common interests fuse the two companies.
[00:39.470]galaxy
[00:41.573]Astronomers at the University of California discovered one of the most distant galaxies.
[00:49.071]generalize
[00:50.557]You cannot generalize about the effects，of the drug from one or two cases.