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平行， へいこう
1. parallelism, running parallel (to, with)
2. running concurrently, occurring at the same time, keeping pace with
3. not reaching an agreement (e.g. of a debate)
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
と
1. if, when
2. and
3. with
4. used for quoting (thoughts, speech, etc.)
5. promoted pawn
6. indicates a question
表示引用
