费力

骑自行车上这个陡坡很费力。

qí zì xíng chē shàng zhè ge dǒu pō hěn fèi lì.

Cycling up this steep slope is very exhausting.

刚孵化出来的小海龟费力地破开蛋壳，迎着清晨的第一缕微光爬向辽阔的大海。

gāng fū huà chū lái de xiǎo hǎi guī fèi lì dì pò kāi dàn ké, yíng zhe qīng chén de dì yī lǚ wēi guāng pá xiàng liáo kuò de dà hǎi.

The newly hatched turtles struggled to break open their eggshells and crawled toward the vast sea at the first ray of light in the morning.