Subject + 对 + Topic + 担忧
担忧 (dānyōu) means "to worry" or "to be anxious about." It is slightly more formal than 担心 and is often used in written Chinese and news reports to express concern about a situation or outcome.
父母担忧孩子在国外的安全。
Fùmǔ dānyōu háizi zài guówài de ānquán.
The parents are worried about their children's safety abroad.
大家都在担忧经济形势的变化。
Dàjiā dōu zài dānyōu jīngjì xíngshì de biànhuà.
Everyone is worried about the changes in the economic situation.
你不用太担忧,事情会好起来的。
Nǐ bú yòng tài dānyōu, shìqíng huì hǎo qǐlái de.
You don't need to worry too much; things will get better.