同根派生 on your guard相關(guān)詞英漢例句Be on your guard against Miss Thompson. She's an old cat.你要當(dāng)心湯普森小姐，她是個脾氣很壞的老太婆。Be on your guard, I conjure you.千萬要警惕呀，我懇求你。on your guard更多例句