Endothelin
内皮缩血管肽
🗣️ 情景例句
The trouble is
问题是
Men, at soome time, are masters of their fates.
人有时是自己命运的主人。
Yesterday the firemen examined the ground carefully, but were not able to find any broken glass.
昨天，消防队员仔细查看了地面，但未能发现碎玻璃。