She made a large withdrawal from her savings account.

withdrawal 是动词 withdraw 的名词形式，由 withdraw（取回、撤回）加上名词后缀 -al 构成。withdraw 本身由前缀 with-（表示"往回"）和 draw（拉、取）组成。 withdrawal 在这里指"从银行账户中取钱"的行为或金额。