得了便宜就卖乖？德媒建议欧盟参战：联美抗中欧盟贸易战关税

<nowiki>Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus × hollandica ?Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; Ulmus ×hollandica ‘Pioneer’; elm cultivar</nowiki>