Despite a number of setbacks, they persevered in their attempts to fly around the world in a balloon.
虽屡遭挫折,他们仍不断尝试乘气球环游世界。
The bats are able to avoid other predators, and locate prey—typically insects that fly around at night.
蝙蝠能避开其他捕食者,找到猎物——通常是夜间飞行的昆虫。
These satellites fly around the earth.
这些卫星绕地球飞行。
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