Nonadecane
十九(碳)烷
🗣️ 情景例句
I sure do.
我当然记得。
There should always be exceptions to the rule.
凡事总有例外。
There, a child grows up under the ever-present attention of his parents;
荒凉地区的孩子无时无刻不在父母关怀下成长。