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Sentence analysis
8Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
システム
systemnoun
は
topic markergrammar
エネルギー
energy (physics); energy; vigor; stamina; energy source; energy resource; food energy; caloriesnoun
を
object markergrammar
効率的
efficientna-adjective
に
adverbial form after an adjectival suffixgrammar
使う。
use; make use of; employ; handle; spend; consume; speakgodan verb