Here's a revised version of your recipe for an international audience, with clearer instructions and common measurements:

This quick and delicious dish brings together the sweet flavor of scallops with the savory notes of butter and soy sauce. It's a simple yet elegant meal that's perfect for a weeknight dinner or a special occasion.

Ingredients:

• 1 bunch asparagus
• 1 can (about 5-6 oz or 150-170g) canned scallops (drained)
• 1 tablespoon oyster sauce
• 2 tablespoons unsalted butter, divided
• 1 tablespoon soy sauce
• Optional: A knob of extra butter for serving

Instructions:

1. Prepare the Asparagus: Wash the asparagus thoroughly. Snap off the tough, woody ends. Use a vegetable peeler to remove the fibrous outer skin from the lower half of each stalk. Cut the asparagus into 1-2 inch (2.5-5 cm) pieces.
2. Season the Scallops: Open and drain the can of scallops. In a small bowl, gently toss the drained scallops with the oyster sauce until they are lightly coated.
3. Sauté the Asparagus: Heat 1 tablespoon of butter in your frying pan over medium heat. Once the butter is melted and sizzling, add the prepared asparagus. Sauté for 3-5 minutes, or until the asparagus is tender-crisp and bright green.
4. Add the Scallops: Add the seasoned scallops to the pan with the asparagus. Cook for 1-2 minutes, just until the scallops are heated through. Be careful not to overcook them, as canned scallops are already cooked.
5. Finish with Soy Sauce: Pour the soy sauce over the scallops and asparagus. Stir gently to coat everything evenly. Cook for another 30 seconds to allow the flavors to meld.
6. Serve: If desired, stir in the remaining 1 tablespoon of butter (or the optional extra knob) for added richness just before serving. Serve immediately.

I've made a few changes to make it more accessible:

• Standard Measurements: Used tablespoons and ounces/grams for clarity.
• Detailed Instructions: Provided more specific steps for preparing asparagus and cooking times.
• Ingredient Clarification: Specified "canned scallops (drained)" and "unsalted butter."
• Equipment List: Included common kitchen tools.
• Optional Ingredient: Clearly marked the extra butter as optional.
• Introduction and Conclusion: Added a brief intro and outro to make it feel more like a complete recipe.