TSUMUGU · TOCFL C1 (est.) · 詞
戒備
ㄐㄧㄝˋ ㄅㄟˋ · jièbèi
verb — to be on guard, take precautions and stand ready against trouble
關 · Related
防fángbèito guard against — the close synonym森嚴jièbèisēnyántightly guarded — the set phrase for heavy security