impregnable
/im'pregnәbl/
GRE
BNC词频: #19,132
当代词频: #25,486
中文释义
a. 无法攻取的, 坚强不屈的, 驳不倒的
英文释义
s. immune to attack; incapable of being tampered with
s. incapable of being overcome, challenged or refuted
a. 无法攻取的, 坚强不屈的, 驳不倒的
s. immune to attack; incapable of being tampered with
s. incapable of being overcome, challenged or refuted