vt. 阻止,排除,妨碍
拆分: pre- 前,先 + -clud- 关,闭 + -e 动词词尾
固定搭配:preclude sb. from doing = prevent sb. from doing 阻止某人做…
例:A prior engagement will preclude me from coming. 我因有约在先,不能来了。
