Just before serving, toss watercress with enough dressing to coat. Quarter, pit, and peel avocado, then cut crosswise into 1/4-inch-thick slices. Gently toss with watercress.

• 快要熟的时候，把水田芥放入然后涂抹充分。15分钟后，把鳄梨皮削去，放入锅中，交叉的切成四分之一片，再涂抹水田芥。