vt. 改变,变更;交换,替换;兑换;换衣服(床单);
vi. 改变,转变;交换,互换;换衣,更衣;
n. 变化,改变;交换,交替;零钱,找头;代替物;
🗣️ 情景例句
Terrific!
好极了!
She's always helping people.
她总是帮助别人。[现在进行时]
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.