And Andrew had been doing his own bits of research, and one of the things that he had been told and that he'd learned from studying the literature was that there's actually a big bottleneck.
アンドリューは ちょっとした研究を 続けていましたが 他の人に教えられた事の 一つについて 文献を調べてみると 実に大きなボトルネックがあることが 分かったのです