Pentacontane
五十烷
🗣️ 情景例句
You can't take her promises seriously, she never keeps her word.
她答应的事不用当真，她说话从来不算数。
How embarrassing!
多难为情啊！
our confidence in the curative properties of the bottle of medicine remains the same as theirs.
我们对瓶装药品疗效的信心仍与祖辈一样坚定。