Lactone ring five membered
[建] 五节内酯环
🧩 词语组成解析
n. 戒指,指环;铃声,钟声;环形物;拳击场;
vt. 形成环状;环绕;使(例如铃)响;打电话给;
vi. 按铃,敲钟;回响;成环形;
num. 五,五个;与某人击掌问候(或庆祝胜利);第五;
n. 五,五个;5美元钞票;[板]得五分;
adj. 五的;五个的;
🗣️ 情景例句
I love keeping animals for companionship.
我喜欢养动物为伴。
All things are difficult before they are easy.
凡事必先难后易。
Municipalities naturally want to secure the campers' site fees and other custom.
市政当局当然希望获得露营者的场地费和其他光临的好处,
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