woocommerce/plugins/woocommerce-blocks/assets/js/blocks/checkout/inner-blocks/checkout-actions-block/constants.tsx

/**
 * External dependencies
 */
import { __ } from '@wordpress/i18n';

export const defaultPlaceOrderButtonLabel = __( 'Place Order', 'woocommerce' );
export const defaultReturnToCartButtonLabel = __(
	'Return to Cart',
	'woocommerce'
);