慢速英语:Taiwan to Hold Rescue Exercises in South China Sea

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practice – v. do something over and over again as a way to get better at it

drill – n. way of learning something by doing repeated exercises

patrol – v. to continually search an area to make sure it is safe

dredging - v. – v. to dig out and clear material from a body of water

logical - adj. seeming natural, reasonable or sensible

rhetoric - n. language intended to influence people that might not be honest or reasonable

sovereignty – n. a country's independent authority and the right to govern itself