n.臂;手臂;扶手;上肢;袖子;分部;臂状物;狭长港湾;战事;权力;
vi.准备(斗争),准备行动(against);
vt.武装;装备;备战;准备发射;给…装上引信;打开…的保险;使(炸弹等)随时爆炸
例句:
He raised one arm and then the other.
他先举起一只手,然后举起另一只。
She took his arm and pulled him along.
她抓起他的胳膊,拉着他往前走。
She spread her arms and the child ran towards her.
她张开双臂,孩子向她跑来。