Focometry
测焦距术
🗣️ 情景例句
Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.
听着， Richard，一小时的有氧运动可与举重大不相同。
Who is the greatest writer of our times?
谁是当代最伟大的作家？
Will you time me?
你给我计时好吗？