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もつれる， 縺れる
1. to tangle, to get tangled, to get entangled
2. to have poor control over (one's tongue, feet, etc.), to trip over
3. to become complicated, to become difficult, to become tricky, to get into a tangle, to become messy
tbd
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接戦， せっせん
1. close contest, close match, close game, close race
2. close combat
tbd
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
