“手掌”的英语表达是 palm。它既可以作名词,表示手掌、手心,也可以作动词,表示将(手)平放、把……藏于掌(心)等。例如:
名词用法:He held the ball firmly in the palm of his hand.(他牢牢地把球握在手掌里。)
动词用法:She palmed the key and slipped it into her pocket.(她把钥匙藏在手掌里,偷偷放进了口袋。)