In plain words
Supreme Lord, it is just as You have described Yourself. Yet, Purushottama, I wish to behold Your sovereign form.
Word for word
So [is] this, as You declare Yourself, O Supreme Lord; I wish to see Your sovereign form, O Supreme Person.
एवमेतद् यथाऽऽत्थ त्वमात्मानं परमेश्वरद्रष्टुमिच्छामि ते रूपमैश्वरं पुरुषोत्तम
Other commentaries
The commentators
▸Bhagavadgītābhāṣyam· bhāṣya
एवमेतत् नान्यथा यथा येन प्रकारेण आत्थ कथयसि त्वम् आत्मानं परमेश्वर । तथापि द्रष्टुमिच्छामि ते तव ज्ञानैश्वर्यशक्तिबलवीर्यतेजोभिः सम्पन्नम् ऐश्वरं वैष्णवं रूपं पुरुषोत्तम ॥ ३ ॥
In plain words
It is exactly as you say — not otherwise — precisely in the way you have declared yourself to be, O Supreme Lord. And yet, I still long to see, with my own eyes, that majestic form of yours, the very form of Viṣṇu, endowed with knowledge, lordship, power, strength, valor, and splendor, O Supreme Person.
Close to the Sanskrit
Thus this is, not otherwise, in the way, by whichever manner, you have declared, you say, yourself, O Supreme Lord. Even so, I wish to see your, your, form endowed with knowledge, lordship, power, strength, valor, and splendor — the majestic, Vaiṣṇava form, O Supreme Person.