palmed

魔术师迅速地把硬币藏于掌中，然后让它消失了。

约翰用手掌托住了那个球。

魔术师迅速用手掌藏起硬币，然后让它消失了。

一只长着像手掌一样鹿角的鹿

Explanation of choices:

• 一只鹿 (Yī zhī lù): "A deer" - a standard and natural way to say "a deer" in Chinese.
• 长着像手掌一样鹿角的 (Zhǎng zhe xiàng shǒuzhǎng yīyàng lùjiǎo de): "Having antlers like a palm." This directly translates the concept of "palmed" in the context of deer antlers.
  • 长着 (zhǎng zhe): "Having, growing." This is a natural way to say that the deer possesses antlers of a certain shape.
  • 像手掌一样 (xiàng shǒuzhǎng yīyàng): "Like a palm." This clearly explains the "palmed" aspect, relating it to the familiar shape of a hand.
  • 鹿角的 (lùjiǎo de): "Antlers."

This translation avoids overly literal or unnatural phrasing. It emphasizes the meaning by using a descriptive phrase relating the antler shape to a palm. This is much more useful for a learner than a stilted or directly translated phrase.