他在海里呼救。
tāzài hǎilǐ hūjiù 。
He is calling for help in the sea.
请不要害怕,呼救可以帮助你。
qǐng búyào hàipà , hūjiù kěyǐ bāngzhù nǐ 。
Please don't be afraid, calling for help can assist you.
她在山上呼救,其他人都听到了。
tāzài shānshàng hūjiù , qítā rén dū tīngdào le 。
She called for help on the mountain, and others heard her.