How long does it take to learn tongue twisters?

Two-for-one twister should be studied for at least three months.

Twisting machine, also known as twister, is an indispensable tool in the construction of wooden boats, and its efficiency is the same as that of welding steel plates with electrodes in the construction of iron boats. The difference is that the raw materials used in the twister are tung oil, lime, twined hemp yarn and hemp cake mixed with putty. The tools for screwing workers are also very simple, including an open axe for hammering and nailing, two wide and narrow chisels, and three large, medium and small batch knives, which are used to clean the joints of boards and put them in the toolbox. It is very convenient to carry around.