Tidelines
n. = tidemark
🗣️ 情景例句
Room service. May I help you?
客房服务部，需要我为您效劳吗？
Virtue flies from the heart of a mercenary man.
唯利是图者，胸中无美德。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!
因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。