https://www.irs.gov/businesses/gifts-from-foreign-person?
For gifts or bequests from a nonresident alien or foreign estate, you are required to report the receipt of such gifts or bequests only if the aggregate amount received from that nonresident alien or foreign estate exceeds $100,000 during the taxable year. If the gifts or bequests exceed $100,000, you must separately identify each gift in excess of $5,000.
google translate
對於來自非居民外國人或外國遺產的贈與或遺贈,隻有當納稅年度內從該非居民外國人或外國遺產收到的總金額超過 100,000 美元時,您才需要報告收到此類贈與或遺贈的情況。如果贈與或遺贈超過 100,000 美元,您必須分別列出每筆超過 5,000 美元的贈與。
你的情況是從甲的親戚收到一個不到10萬元的贈款,又從乙的親戚收到另一個不到10萬元的贈款。這兩個贈款,如果是無關的贈與(就是不是故意拆分贈款),那麽從“該非居民外國人”(that nonresident alien) 收到的贈款總和不超過10萬元,不需要報3520.